Dual Casting + Hidden Strings + Twinning Staff

Prerequisites

• Dual Casting attached to any creature you control without summoning sickness.
• You control an additional permanent that can tap to produce .

Steps

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

Effects

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