Voldaren Bloodcaster // Bloodbat Summoner

Voldaren Bloodcaster

Creature — Vampire Wizard

Flying
Whenever Voldaren Bloodcaster or another nontoken creature you control dies, create a Blood token. (It's an artifact with ', , Discard a card, Sacrifice this artifact: Draw a card.')
Whenever you create a Blood token, if you control five or more Blood tokens, transform Voldaren Bloodcaster.

Bloodbat Summoner

Creature — Vampire Wizard

Flying
At the beginning of combat on your turn, up to one target Blood token you control becomes a 2/2 black Bat creature with flying and haste in addition to its other types.

Set: Innistrad: Double Feature

Language: English