Generator Servant (UMA-133) - Ultimate Masters
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NOT LEGAL
Standard
NOT LEGAL
Future
NOT LEGAL
Historic
NOT LEGAL
Timeless
NOT LEGAL
Gladiator
LEGAL
Pioneer
NOT LEGAL
Explorer
LEGAL
Modern
LEGAL
Legacy
LEGAL
Pauper
LEGAL
Vintage
LEGAL
Penny
LEGAL
Commander
LEGAL
Oathbreaker
NOT LEGAL
Standardbrawl
NOT LEGAL
Brawl
NOT LEGAL
Alchemy
LEGAL
Pauper Commander
LEGAL
Duel
NOT LEGAL
Oldschool
NOT LEGAL
Premodern
NOT LEGAL
Predh
, Sacrifice this creature: Add 
. If 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.)