i like the strategy/RPG elements, the music is great, and the auto-attack feature is a great quality of life add. art style is super cute too and buying from the shop is fun - getting to increase my attack radius was really satisfying.
one potential thing you could add - during the gameplay maybe have power ups that spawn randomly on the map and you have to click them fast to get them else they disappear; just to add a little more variety to the game mechanic! but of course features vs time limit is always a factor in game jams!
and bonus funny note - after year ~7 i was able to buy Chain Lightning, Shatter, and Ignite in one go. and then Year 8 and 9 i beat in like 5 seconds whereas it was taking me prolly >30seconds to beat the years before it lol! buying all power ups and then re-roll to buy more is an OP strat :)