Stormfiend Boneripper

Partner with Grey Seer Thanquol
Double Strike, Menace, Trample
When Stormfiend Boneripper enters the battlefield from a graveyard, you get an
experience counter.
Boneripper gets +X/+X, where X is the number
of experience counters you have.
{1}{b}{g}: Send Boneripper to the graveyard from
your hand or command zone.