Doremy

[Alsharys]

I had a very hard time (and lost) to Doremy playing Marisa, because the potions are thrown randomly.
Her invocations aren't taking any damage, so most of the time Doremy didn't take damage.
I found this very frustrating and maybe deserves a change.

[SilentCaay]

For one, if you're playing a potion deck and you're on Act 3, your deck should be consistent enough that potions aren't really "random" but rather a stream of damage that you can summon practically any time you use card draw/Scry. Even if you can't use the potions to inflict damage on that turn, potions cycle and give mana so you can play cards to keep your deck full of potions so you have more potions for when the enemy can be damaged. In earlier acts the deck will be a bit more random but by Act 3 it should be consistent if you've built it well.

For two, anti-drag-the-game-out mechanics can't really be complained about since you should be ending the combat before those mechanics even come into play. There are a few enemies that get a ridiculous power boost late in the combat but those phases are there to ensure you aren't dragging the combat out. The solution is to kill them faster.

[Vengyr]

Marisa has access to poison which instantly wakes her up; her spellcard deals 32 damage instantly, leaving you to do only 18 more. So I don't see how this is a problem, as long as you keep in mind that you might encounter her.

[xertaii]

When Doremy begnin summoning, that mostly mean you lose the fight, whatever deck you are playing...

if you got a deck that is weak, i advise to use your spellcard turn 1 to wake her. it delay quite a lot the summonging.