Mewtwo

+1 Until end of turn, up to one target creature gets +1/+1 and gains first strike, vigilance, and lifelink.

-2 Put a +1/+1 counter on each creature you control and a loyalty counter on each other planeswalker you control.

-7 You get an emblem with "If a source would deal damage to you or a planeswalker you control, prevent all but 1 of that damage."