Sensei's Iron Fist of Wrath

Equipped creature gets +1/+2 and has Vigilance
and "Whenever this creature blocks a creature,
you may pay {4}. If you do, remove this creature
from combat and return the blocked creature to
its owner's hand.
Equip {3}
"Let's hit them before thinking about whether you can
win." - Yamaiko, Creator of Yuri Alpha.