Raoken, Unchained Gladiator

Ruthlessness (Whenever a creature with ruthlessness attacks, as long as another creature you control has
haste, vigilance, or melee, you may have the creature
with ruthlessness get "this creature can't be blocked"
until end of combat on your turn.)
Whenever a creature you control with
ruthlessness attacks, you may put your choice of
a haste, vigilance, or melee counter on target
creature you control.