the difficulty ramp from level 1 to 2 is a little much. The first turn of every round is basically guaranteed damage unless you get lucky enough to get a shield. It should be something like Level 1: 3x3, Level 2: 3x3 swap every 2 turns taken, Level 3: 3x3 swap every turn, Level 4: 4x3, and on and on. This way players can build items a bit more and have more of a chance to progress

why is this considered a casual game.

Suck me off

good but feels a tad too hard