Izrah, the Spellshaper

Whenever you cast an instant or sorcery spell
you may exile it, then return it to the battlefield
as a blue and red Weird creature with power and toughness equal to half of its converted mana cost rounded up. It gains whenever this creature deals combat damage to a player you may sacrifice it.
If you do, you may cast an instant or sorcery card
with converted mana cost less than or equal to its
power from your graveyard without paying its
mana cost. If that card would be put into your graveyard