Really awesome, I like how the gimmick is that every round you have to choose an ability to sacrifice. I had to think long and hard about which of the three choices to remove which was often a tough choice. I kind of screwed myself early by removing every high damage health attack except for the blood one, but I like how you can only choose between the three random choices the game gives you, so you can't just pick the same ones every playthrough. It's very fun towards the end having to balance the very few attacks you have left. And I love the final fight! Awesome music and art, plus a cool storyline. The attack animations and sounds were particularly great.
I think other than minor issues like the health bar not visibly increasing when you heal, one change I'd like to see is a way to look at the attacks that an enemy has. It'd be nice to know what attacks are in its arsenal and how much damage they deal so there's a bit more strategy. Also I think I would not have won if not for the health regen ability; it healed 250 hp and had a 1 turn cooldown which was a bit much. Increasing the cooldown to 2 or 3 turns would make me less reliant on spamming it, since I felt like I was in no danger anymore once I learnt how busted it was. Otherwise, really fun game!