Iz'Torehk, The Many

Indestructible
Whenever you cast an instant, artifact, or sorcery
spell, put a +1/+1 counter on Iz'Torehk, The
Many.
{u}{u}{r}, {t}: Copy target instant, artifact, or
sorcery spell as it enters the battlefield. Activate
this ability only as you cast target spell.
Pantheon