From what I’ve seen, there are a couple of cards which the AI simply can’t play effectively. The worst one is Reclaim and similar but less bad is Fiery Conclusion. Both of these cards have you sacrifice a creature. For some reason, the AI seems very prone to stacking reclaim as the last card in its hand, meaning sometimes casts, buffs and then kills its own creature before it can attack and can’t use the mana because its the last card. Fiery conclusion is similar but sometimes it can at least get a kill. For both of these cards, I think the win rate for the AI would go up if it just automatically discarded them.
Incidentally, I don’t blame the devs that AI can’t play these cards well. They require some pretty careful thought to use correctly as they come with such a major cost/benefit trade off and I wouldn’t say that the team should devote themselves to making the AI smart enough to use them.
Any other cards the AI just can’t seen to use and which it would be better off discarding?