The Caldaia is a common Plane — Capenna card from March of the Machine Commander (MOC), collector number 47. Current market price: $2.22, TCGplayer market prices via Scryfall.
Creature spells you cast from your hand have blitz {3}. (If you cast a spell for its blitz cost, it gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step.) Whenever chaos ensues, return target creature card from your graveyard to your hand.