Decidueye, Precise Archer

Reach, Haste
When Decidueye attacks, put a quill counter on
target creature. When a creature with a quill
counter on it attacks, deal damage equal to the
number of quill counters it has to it. When a
creature with a quill counter on it deals combat
damage to a player, remove a quill counter from
it. Whenever a creature with a quill counter on it
dies, put it onto the battlefield under your
control.