So, beat the game at level 0 on my first run, but with copious save scumming. My final deck ended up pretty strong - was built around "Kick Showing Off". I don't know if it's a change in the latest patch, but it actually does three times the number of Debuff/Transient in the enemy hand, not 2x like it says. So Signal Lost into Kick Showing Off was 12 damage straight up, then they take another 4 damage when they use the curses, and it wastes their turn. Infinity Mirror adds more trash to their hand when it gets graveyarded, and then I use Refurbishment of the Corpse or Seeds and Mechanisms to recur Kick until they're dead. Spirit Strength at Full Strength and Kinjir Style Reawaken Boundary dig through my deck to find the combo pieces, and Unsure to Temper boosts my mana to do it all in one turn. Ended up finishing off most enemies in two or three turns. I picked up a late Witch Housing, which does some serious damage.