Isao, Enlightened Bushi uit de Betrayers of Kamigawa set

This spell can't be countered.

Bushido 2 (Whenever this creature blocks or becomes blocked, it gets +2/+2 until end of turn.)

{2}: Regenerate target Samurai.

"I do not care if he claims no allegiance in this war. Find him, Takeno." —Lord Konda