Reins of Power + Mindslaver + Dual Casting

Prerequisites

• Dual Casting attached to a creature that does not have summoning sickness.
• Creatures you control can tap to produce at least .

Steps

1. 1Activate Mindslaver by paying and tapping it, causing you to gain control of an opponent during their next turn.
2. 2During the opponent's turn, cast Reins of Power by paying , targeting the opponent you have control of.
3. 3Holding priority, activate all mana-producing creatures you control by tapping them, adding at least .
4. 4Activate the creature with Dual Casting attached by paying and tapping it, copying Reins of Power.
5. 5Resolve the copy of Reins of Power, untapping all creatures you and the opponent control, and exchanging control of those creatures.
6. 6As the opponent, activate all mana-producing creatures you control by tapping them, adding at least .
7. 7Activate the creature with Dual Casting attached by paying and tapping it, copying Reins of Power.
8. 8Resolve the copy of Reins of Power, untapping all creatures you and the opponent control, and exchanging control of those creatures.
9. 9Repeat from step 3.
10. 10If creatures you control can tap to produce at least , you may choose to have yourself and/or the opponent you have control of to gain infinite mana.

Effects

• Infinite magecraft triggers
• Infinite mana creatures you control can produce
• Infinite mana creatures you control can produce for target opponent
• Infinite untap of creatures you control