Godrick the Grafted

When Godrick enters the battlefield, you may
exile a dragon you control: exile target creature.
Put Grafted counters on both creatures in exile.
When Godrick attacks, you may pay {x}: For up
to X creatures exiled with Grafted counters,
create a token that is a copy of that creature
tapped and attacking. Exile them during the end
phase.
I am the lord of all that is Golden.