Rise of the Tomb Raider
143 Achievements
2,250
62-78h
My Own Worst Enemy
Complete a level in Score Attack with a card bonus of 200% or more
10
0.19%
How to unlock the My Own Worst Enemy achievement in Rise of the Tomb Raider - Definitive Guide
Mine actually unlocked where I was only on +125% from cards so this leads me to believe that the score is counted in addition to the base 100%. (i.e. you didn't use cards to lower the score %). Hope this helps :)
Edit: Runner eGirl has suggested playing "Voice of God" instead as it is a short level too. I've attached a link for a playthrough of this level
Further Edit: Lockie and I would both recommend you don't pick a card with "press x to grip ledges" it is a very hard one to remember to do and there are far easier ones you can use to hit 100% (no deaths for example)
Expeditions Mode only.
For this achievement, you need to apply cards (see also "These Belong in A Museum" above) with a total score multiplier of 200% or more to a given encounter and then complete the chapter. This is most readily achieved with the chapters that focus on a single Challenge Tomb, as you're unlikely to take damage here so damage-related effects aren't problematic to deal with. I suggest in particular the cards that those which disable health regeneration (which isn't possible on Survivor difficulty anyway) and those that start Lara with no ammunition (often not required for Challenge Tombs, or readily available from ammo pickups).
Expeditions Mode only
For this achievement, you need to apply cards (see also "These Belong in A Museum" above) with a total score multiplier of 200% or more to a given encounter and then complete the chapter. This is most readily achieved with the chapters that focus on a single Challenge Tomb, as you're unlikely to take damage here so damage-related effects aren't problematic to deal with. I'd suggest in particular the cards that those which disable health regeneration (which isn't possible on Survivor difficulty anyway) and those that start Lara with no ammunition (often not required for Challenge Tombs, or readily available from ammo pickups).
(Online)
In Score Attack, replay a challenge tomb and equip cards with negative effects until you see a 200% score multiplier (or more). Cards that block health regeneration or let you start with zero ammo are great score boosters. Challenge Tombs are very short and don’t have any enemies.
Expeditions Mode only, requires online connection.
For this achievement, you need to apply cards (see also "These Belong in A Museum" above) with a total score multiplier of 200% or more to a given encounter and then complete the chapter. This is most readily achieved with the chapters that focus on a single Challenge Tomb, as you're unlikely to take damage here so damage-related effects aren't problematic to deal with. I suggest in particular the cards that those which disable health regeneration (which isn't possible on Survivor difficulty anyway) and those that start Lara with no ammunition (often not required for Challenge Tombs, or readily available from ammo pickups).
https://www.youtube.com/watch?v=WpiKB3Y4PvQ