Community

Generator Servant
Creature — Elemental
tap , Sacrifice this creature: Add colorless mana colorless mana . If any of that mana is spent on a creature spell, it gains haste until end of turn. (That creature can attack and as soon as it comes under your control.)
Infinite potential given finite form.
Rulings (4)
If a creature spell has generic mana only in its alternative or additional cost, the creature will still gain haste.
Dec 7, 2018
If the mana is spent on a noncreature spell that becomes a creature later in the turn, that creature won't have haste.
Dec 7, 2018
If the mana is spent on two different creature spells, each of those spells (and resulting creatures) will gain haste until end of turn.
Dec 7, 2018
Legality
Formats by platform
Commander
Competitive
Community & retro
Printings (3)
UMA#133$0.34
Ultimate Masters
PLST#M15-143$0.31
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