Akari, Youthful Graceblade

Akari, Youthful Graceblade has Bladewhirl X,
where X is the number of attacking creatures.
(Whenever this creature becomes blocked,
it deals X damage to each creature blocking it.)
Creatures your opponents control attack each
combat if able.
"Battle is like a dance. I've leaned to dance to the
sound of blade against blade. The melody of
battle is one I'm familiar with."