Diablo III: Reaper of Souls

WARNING: There is potential problem with this trophy in the PS3 version of the game, I don't know if this make it missable or is a glitch but it's worth mentioning so read this thread before starting the game: LINK

This trophy along with Batting 500 will be what takes up the most of your time in Reaper of Souls. To get this trophy you will need to level all classes to level 70 and to do this I have found the best strategy to be boosting with one or several of your friends. In Reaper of Souls you have this new feature called "Apprentice Mode". Apprentice mode kicks in if there is a level difference between the players in the game. For example I was playing with my 2 buddies which were both level 70 where I joined with a level 2. My stats were directly upgraded to be on par with the 2 other players in the party. You still gain loot appropriate to you own level, but the experience gain was insane. 10 levels in around 5-10 mins which will be the way to go if you want to get this trophy out of the way. There are several items that increases experience gained as well. Some notable items are the crafted Hellfire Rings(that has no level requirement(Both level 60 and level 70 versions)) and the Leoric's Signet.

The items mentioned above all gives bonus experience and can be equipped on both yourself and on your followers for an extra bonus gain. On top of the rings there are also the Cain's Set which will increase experience gained by 50%(!) To top it all off you can also socket the helmet with a Ruby which at the highest rank gives you a 41% increased bonus to experience gained. There is no level requirement on the gems either. If you have any further tips on leveling, then feel free to add them later on and I will update the guide with it.

Another important note is that your Hardcore characters will also count towards this, so getting to level 70 on hardcore with for example, a Barbarian, then getting the 5 other classes to 70 on Softcore will still pop the trophy.

If you need someone to help you level up, try to use the thread here for partners.