The basis is good, but it could use some more variation. I don't know if enemies are random, but I was fighting only trolls until the last 2 monsters. The Dwarf could give 2 armor on a 2 turn cooldown, having the cooldown on 1 means you just use it every turn and you don't have to think about it.
Everything worked and I didn't notice any bugs, so that is an accomplishment in itself in a game jam (I'm sure we didn't manage to stay bug free ;P)