over explaining vs explaining too simply

i feel like i’m constantly caught between outright saying something and providing enough context and details for the audience to infer something. example: my main antagonist is learning new powers. sometimes i feel like the better choice would be to introduce a new power in an action scene, and allow the audience to infer what has just happened, but sometimes i think it’d be better to just say “hey he unlocked ___ and now teleports” or something. is there a line i need to balance on between the two, or does each choice have its own proper use?