Mirror Box (Showcase) Zendikar {T}: Prevent all combat damage

{T}: Prevent all combat damage that would be dealt by target attacking creature this turn

{0}: Add X mana in any combination of {U} and/or {R}

Turn target creature face down

you may activate one of its loyalty abilities once this turn as though none of its loyalty abilities have been activated this turn

it deals 4 damage divided as you choose among any number of target creatures and/or planeswalkers

Mirror Box (Showcase) Zendikar {T}: Prevent all combat damageThe "legend rule" doesn't apply to permanents you control. Each legendary creature you control gets +1 +1. Each nontoken creature you control gets +1 +1 for each other creature you control with the same name as that creature.