Is there a way to tell if a unit is grown or shrunk?

The only way I can see is if you hit it and look at the change in health. But ideally I would just say - ignore this buffed unit.

We haven’t exposed one, except for the spellcaster using this.canCast('shrink', target). We were considering making target.hasEffect('shrink') available, but then the API gets cluttered, and for Dungeon Arena, we wanted to keep it simpler. I think Brawlwood lets you do this, though.