I really enjoyed playing this game!
Unfortunately I got stuck at level 5 because the healer kept healing itself back to full health and I wasn't able to one shot it, so the balance could be improved... On the bright side I really appreciated the fact that the slots affected by the purple dices light up when you hover another dice on the purple one, that's neat!
Since I didnt' go higher than level 5 I don't know if it's a feature that already exists but I would've loved to have the option to use more dice than 3 per turn, to be able to make even cooler combinations. The way the slots are presented is super cool, too (kinda makes me think of an invocation board or something, haha!) and makes for interesting combinations.
Overall the concept and the art are really fun and I look forward to play it again in the future, especially if you release an improved version ^^