Rengoku, Flame Hashira

Vigilance, Bushido 2, Flame Breathing
When Rengoku, Flame Hashira enters the
battlefield, clash with an opponent. If you
win, put a +1/+1 counter on Rengoku,
Flame Hashira. (Each clashing player reveals
the top card of their library, then puts that
card on the top or bottom. A player wins if
their card had a higher mana value.)
"Set your heart ablaze."