name: Energy Tap
originalText: Target untapped creature you control becomes tapped. Add an amount of colorless mana equal to target creature's casting cost to your mana pool.
printings: 4BB, 4ED, LEG, PZ2, REN
text: Tap target untapped creature you control. If you do, add an amount of {C} equal to that creature's mana value.
type: Sorcery