As long as Yoda is in the Character arena, Finis can't be attacked.
Each of your Jedi in the Ground and Character arena gets "Forewarning: Draw a card."
Keywords
Forewarning
Forewarning: [Effect]: A static, layered effect that means, "Whenever this unit is attacked, you may predict the number of hits that will be rolled for that attack. If you're correct, gain the [effect]. For example, a unit with "Forewarning: Gain 2 Force" will give you 2 Force if you guess the number of hits rolled correctly.