Trying to build a whole turn-based tactics game for a jam seems like a massive undertaking and I applaud the attempt.
As it stands it's a pretty bare-bones prototype but could definitely build into something bigger. There are no obstacles so the battles are just pretty dependent on the power of your units as they only have a singular attack option. The melee unit is very powerful, the potion unit doesn't seem to do much.
Definitely potential here but also not a lot to actually give feedback on as it currently is.