Dual Casting + Toils of Night and Day + Twinning Staff

Prerequisites

• Dual Casting attached to any creature you control without summoning sickness.
• A permanent that can tap for .

Steps

1. 1Cast Toils of Night and Day with any targets.
2. 2Pay and tap the creature enchanted with Dual Casting to copy Toils of Night and Day, targeting the creature enchanted with Dual Casting and a permanent that can tap for .
3. 3Twinning Staff triggers, creating a copy of Toils of Night and Day.
4. 4The copy targets at least the permanent.
5. 5Allow the first copy of Toils of Night and Day to resolve.
6. 6Tap the permanent for .
7. 7Repeat steps 2-6.

Effects

• Infinite colored mana
• Infinite magecraft triggers
• Infinite mana creatures you control can produce
• Infinite untap of creatures you control