Yara, The Crimson Blade

Bushido 1
First Strike
When this creature enters the battlefield destroy
up to one target creature.Whenever a creature
dies put a crimson counter on this creature,
when this creautre dies deal x damage to
any number of targets where is equal to the
number of crimson counters on this
creature, if x is 7 or more return
Yara, The Crimson Blade to the battlefield