wait until phase 4, there the lowest an enemy has 17 of health. and the highest has 37. Good luck 1 turning that
With mirror and good boost you can get up to 22, which is pretty good I think
With best area attack hand I would say you can get ~30+4n damage on turn n consistently, but it would involve no blockers and a Boost & Heal die
OP early game but loses late game. Strat would involve taking out the whole floor before taking damage, but its an unsustainable strategy