Underestimation of Power

Target creature you control gains haste and gets +X/+X until end of turn, where X is the highest power among creatures on the battlefield. Exile it at the end of combat.
"It's over, Anakin. I have the high ground."
"You underestimate my power!"
"Don't try it."
— Obi-Wan Kenobi and Anakin Skywalker