Zephyr Singer [March of the Machine] Vampire and that player sacrifices those

and that player sacrifices those creatures

Set: War of the Spark Type: Creature — Zombie Wizard Rarity: Rare Cost: {U}{B} {T}

{T}: Target creature with power 2 or less can't be blocked this turn

It becomes a creature again if it's not attached

Zephyr Singer [March of the Machine] Vampire and that player sacrifices thoseSet: March of the Machine Type: Creature Siren Pirate Rarity: Rare Cost: {2}{U}{U} Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Flying, vigilance When Zephyr Singer enters the battlefield, put a flying counter on each creature that convoked it.