Arkezi, Vel's Prized Creation

Haste, Trample, Ward {3}
Whenever you cast an instant or sorcery
spell, Arkezi, Vel's Prized creation gets
+2/+2 for each target.
{1}{r}{u}, Discard Arkezi, Vel's Prized
Creation: The next instant or sorcery spell
you cast this turn has overload.