Injustice 2
75 Achievements
153-209h
Master Of All Trades
Reach level 20 with all characters
0.3%
How to unlock the Master Of All Trades achievement in Injustice 2 - Definitive Guide
Raiderhorn
TrueAchievements
TrueAchievements
First off DLC characters aren't required (Darkseid, Red Hood, etc.). Second, you're gonna have to complete Story mode in order to unlock Brainiac as you need him Lv 20 as well for this achievement. So go ahead and do that first. You'll also earn a tiny bit of Xp for your characters from Story mode even though the game doesn't show you earning Xp for Story mode fights. Everyone you play in the Story will be around level 3-4 once you complete it. Third, go ahead and complete everyone's arcade ending for that achievement as well to level them up just a bit further and make it easier on yourself for time.
You need a total of 61'078 character Xp to reach level 20. You earn more Xp based on:
-Time Left on the clock
-Damage Taken
-Enemy Level
Feel free to check the Xp requirements for each level:
Fastest Method
2 Player Local Versus (Updated version!)
-Set the Round Timer to 300 seconds in Gameplay Options
-Load up a 2 Player Local Versus Match (Multiplayer -> Versus)
-Sign in a second profile. This profile MUST have at least one Lv 20 character on it!*
-If you don't have a Lv 20 character, read below...
-Profile 2 selects the Lv 20 character as the opponent. Make sure it's gearless.
-(Optional) Gear up your character on your main profile, specializing in the STRENGTH stat
-In Match Options, turn Level Handicap ON.
-Turn Arena Transitions off
This method happens to be just as fast as pre-patch. You get 1300+ XP per match. Once your character reaches level 16, you'll start earning 1000 XP per match which is the same amount as it was pre-patch. Using this method will take you about 40min to go from Lv 1-20 though it could be faster depending on how you do. At 40min a character it will take you roughly 18.5 hours for the whole cast.
Beat up the second profile as fast as you can getting Flawless wins. An easy way to do this for no effort is to do a 2 hit combo using Wall Bounces (back + Heavy) and/or Ground Bounces (forward + Heavy). If you Meter Burn the Ground Bounce/Wall Bounce, it’ll do more damage. ALSO, if your character has a trait that increases their damage (Superman & Bane are perfect examples) then use them!!
NEW: NEW LEVEL 30 LEGENDARY EDITION UPDATE
As of the Legendary Edition update the level cap has increased from 20-30. This means that you can now boost your levels even faster by fighting a level 30 opponent. Do the same strategy as above, fighting against a second profile that has a character that's Lv 30. This will decrease your completion time by roughly 10min a character from levels 1-20, meaning you'll be looking at around 13.5 hours for the whole cast. That's a huge difference!
Some gear have Augments which can help you earn more XP:
-Expertise (Earn More Character XP per match)
-Pure Focus (Earn More Profile/Character XP per match)
*Question: What if I don’t have a Lv 20/30 character to use to help me level up??
The best workaround to this is to level up each profile’s characters together. What this means is if you are levelling up Superman (for example) from Lv 20 and your second profile also doesn’t have a high level character to boost from, then you must level up the characters together. So, it’ll work like this:
-Profile 1 (you) will level up 4 times
-Profile 2 (second profile) will then level up 4 times.
This is because every 4 character levels or so in difference results in an XP dropoff. You earn more XP for fighting characters of an equal level or higher level than your own characters. If your opponent is 4 character levels below you, you’ll earn less XP. This effect is more noticeable when fighting opponents of a great difference in level.
If you have a second profile that has a Lv 20 character on it (like me) starting from the Legendary Edition update, then use that. I’ve been levelling up a character on my main profile 4 levels, then my second profile the next 4 levels, and so on until Lv 30...
It should also be noted that fighting against a Lv 1 character that is ‘Equalized’ to Lv 20 via the ‘Level Handicap’ match option is not the same! The Level Handicap option is only there for competitive reasons to equalize stats, not XP. So, in sum, you have to fight against opponents that have a similar/higher character level going into the fight for more XP, not one that is manipulated using Level Handicap. You should use the Level Handicap option only if you’re fighting someone stronger (A Lv 16 vs a Lv 30 is not going to be effective… the Level Handicap brings their stats to an equal playing field!).
I highly recommend levelling the second profile to level 30 (takes a little over 2 hours from scratch) as this will save you a lot of time in the long run.
Alternative
Single Player Fights vs AI (Updated version!)
-Set the Round Timer to 300 seconds in the Gameplay Options menu
-Load up Single Player Fight vs AI
-Select the character you want to level up
-When choosing the CPU, press Y to bring up the options and set the CPU level to level 30
-In Match Options, turn Level Handicap ON
Doing this method nets you anywhere from 500 - 1200 XP depending on how fast you win and how much damage you take. I recommend fighting against a character that is fairly easy to rushdown/is slow.
Another Alternative Method
Online Private Versus 1v1:
-Competitive Mode OFF. Throw on all your gear and have your partner stay gearless.
-Turn Level Handicap OFF. This will make it so you stay a high level and your partner stays a low level. If your partner doesn't have a low level character, leave it ON otherwise you're going to be wasting time beating up a high level character.
-Turn Arena Transitions OFF (Optional but transitions do take a while which wastes time).
You get 920+XP each flawless win on your partner in these matches. For easy purposes, hit your opponent with a Ground Bounce (forward + Heavy) twice for a two hit combo. If you can't land two of those in a combo, hit the opponent with a Wall Bounce (back + Heavy) then a Ground bounce. If you Meter Burn the Ground Bounce or Wall Bounce, they'll do more damage. Also if your character has a special move/trait to increase their damage, use it to make it go faster (Bane and Superman are great examples).
Last Resort
Your next best alternative is doing Endless mode in the Battle Simulator located in the Multiverse. Set up an AI loadout and have it do the Endless run for you. I’ve never seen the AI earn less than 300 XP per win in over 100 fights. They mostly earn over 500 XP every match and can earn up to over 900 XP. Of course if you do choose to play it yourself there is the chance you can earn more XP but you must know what you’re doing and the fights will get progressively harder for you to beat, whereas the AI can manage these fights much better.
Final Notes
AI Battle Simulator is not nearly as effective as you'd think even if you sim games at 4x speed. Wins only net you 180-390 Xp per match depending on how good your AI does and you're not guaranteed to win every time. If your AI loses you only get 40-60 Xp which is horrendous. On top of this you have to reload the sim, re-kit your characters with gear and set up their skill points, etc. which wastes more time. The 4x sim speed simply doesn't make up for the Xp payout and time spent setting up/going through the sim.
Happy grinding!
-Credit to Ian Cole for telling me about the updated 2 player local versus method.
-Credit to PJGameFreak for telling me about the updated Single Player Fights vs AI method.
-Credit to Rapture639 for help testing Online 1v1 Private match XP payouts.
Mehdi
TrueAchievements
TrueAchievements
The good thing about it however is that it doesn't require you to win, so you can just do something on the side while your character keeps dying and earning about 500 XP every minute or two, you would want to choose a multiverse planet with a high difficulty enemy that way he kills your character faster, I think this is low effort way to get your characters to level 20.
-Credit to The Pat Kelly for pointing out that you can use this method while playing, to get over 1000 xp for each match, you just have to make sure not to jump.
Second Method
For those characters that you don't really like to play , you can actually let the AI fight a whole multiverse without you having to lift a finger, all you need to do is when you are choosing your player, pick the AI loadout and the AI will do all the work.
If you have any criticism or any questions please let me know in the comments below instead of down-voting. Hope this helps !
PS: Below is a screenshot of the augment.
I select a character with Down To Earth gear, and take on the endless tower until I hit 20. With the right gear, you can get ~1000 xp per match, and with it taking ~4000 for the final few levels, it's very quick.
I'll add what you just suggested to the solution in case it might help someone else.
xMontorix
TrueAchievements
TrueAchievements
Two Controllers!
Turn Off Level Handicap & Arena Transtions!!
FIGHT!!
Pop-Up Attack
and then Jump into an attack to catch them in Midair! Environmental Attack > Ehanched Pop-Up Attack Again!! Repeat!!Small Players, play on Batcave (Armory)!! Big Players play on Kandahq!!
leptonic, Trophy, Germany
This is the longest trophy in the game. Each character are maxed at level 20 and you gain XP after each fight playing with that character. After doing all other trophies you may have 1 or 2 characters around level 20, so you need to grind the rest. You need to max all 28 characters, this includes Braniac which is unlocked after beating story mode.
Patch Note: With patch 1.05, players now receive reduced experience bonuses when playing against an opponent of much lower levels. This means its strongly recommended to play without the patch installed. Digital owners can't delete the patch.
If you are a digital owners, the grind will be incredibly huge.
There are a few methods to boost it, but it depends if you have or not a second controller or if you have a turbo controller.
Method 1:
Make sure you move the settings selecting only one round per match playing versus.
Select your desired character and play against your second controller or AI on Very Easy. Make your way to beat him as fast as you can, you can rematch as many time as you want. Each fight will grant you around 250-400 XP but it depends if you made a Perfect Victory. Try to not use any supermove, it gives you more XP but it takes way long to perform.
Doing this you can finish a fight in 30 seconds, and to reach level 20 you need around 4,900 XP (from level 19), so doing some math you can max a character in 2-3 hours, give or take, and maximize all 28 characters could take you 60-80 hours of full dedication.
Method 2:
An alternate way to maximize all characters is much faster, but it costs real money, around $100 USD. So if you prefer to buy some Source Crystals in the Store you can get this trophy in a really short time. Make sure you reach your last level 20 character by your own.
Method 3:
Using a turbo controller in the Battle Simulator. Here you can maximize three different characters at the same time, leaving the game over night while your three characters level up automatically pressing 
while your sleep.
Method 4:
Finally another XP farm method. This one seems the most efficient way to level up faster, but you need two controllers:
Change the Fight Time to 300 and 2 rounds (from Options at Main Menu), and turn off the level handicap in the Match Options (both players press 
before selecting the map). Doing this will make your AFK rival be at level 1 all the time and he will receive the most damage in-fight.
Once the fight starts make your way to finish the match as fast as you can, if you can beat your AFK rival around 280 left in the clock with two Perfects you can earn like 1,050 XP in 30-35 seconds. If you play another 60 fights you will be maximizing your fighter in less than 40 minutes.
Using this method you should be able to pop this 
trophy in around 20 hours, give or take.
Video: https://www.youtube.com/watch?v=00jHvtyFqmg. (Credits: Benjamin Rulli)
Method 5:
You can take advantage from some augments playing on Multiverse. Read HERE for full details. Thanks to WackFiend for the tip.
fvkasm2x, and, BiggD
You need to get all characters to level 20. This is a massive grind and requires a lot of games. No way around it, other than choosing great gear to increase XP earned and good multiverse battles when they pop up.
korolevd
stratege.ru
stratege.ru
The AI is quite strong, its level is difficult, it even blows out bosses.
You can earn most of the trophies in the game this way.
, Then 
, interactive environment 
optional, but I turned it off. 
+ 
, the enemy jumps back and at the moment of landing 
+ 
, but this does not work with all characters due to its own characteristics, but with the majority. For 1 round you get about 490-500 HP to character experience. According to statistics, I spent from 97 to 120 battles with each character in this way, in time it takes from 30 minutes to 40 minutes per character.
so that the system does not adjust the opponent’s level to yours
bibacomua
stratege.ru
stratege.ru
leptonic
PSNProfiles
PSNProfiles
