a catastrophe to play because every challenging fight is a fight against the control and the party AI, not a fight against the enemy.
I don't think it could have been worded better.
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I only play on nightmare, and I don't play abusively powerful specs; I exclusively play ones I enjoy. This means the game can be a little extra challanging. I've played many games, such that I pick things up quickly.
The battles in this game are extremely simple - even on nightmare with sub-par specs. The nightmare aspect is trying to prevent your other 3 party members from being absolute boneheads. There are many ways to reduce the frustration, but it is still there.
Thank god there are only a few trigger-driven dragon fights (when not killed in 15 seconds) where this really stands out. Trash groups are completely managable, when you leave them using a tenth of their abilities on their own, and the escape ones on preferred.
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The real issue is we can't customize what they do and when - you need triggers to make for fun party combat (coming from someone that did the frostback fight on nightmare while still in haven before any secondary trees or decent recipies, using varric, and a fire staff on solas).
You will be forced into tac cam for certain fights, and it will be to correct whatever they'e doing after you just thought you did last pause.