Energy Tap

Sorcery, U (1)
Tap target untapped creature you control. If you do, add {X} to your mana pool, where X is that creature's converted mana cost.¹
Illus. Daniel Gelon

Format Legality	Legal in Vintage, Legacy Banned in Extended, Standard, MTGO Classic
Printings (2/12)	Fourth Edition (Common) Legends (Common (C2))