Sapphire Pegasus

Flying
When Sapphire Pegasus enters the battlefield,
you may put a Crystal Beast creature from your
hand on to the battlefield Crystalized.
When Sapphire Pegasus dies, Crystalize it.
Crystalize {3} ({3}: Put this card from your hand
on to the battlefield, it's now a non-creature artifact
that has, {t}: Add one mana of any colour that shares
a colour with it.)