Orvar, the All-Form + Throne of Eldraine + Mirror Box + Whim of Volrath

Prerequisites

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Steps

1. 1If able, activate Throne of Eldraine's first ability by tapping it, adding that can only be spent to cast blue monocolored spells.
2. 2Cast Whim of Volrath with buyback by paying , targeting Throne of Eldraine.
3. 3Orvar's first ability triggers, creating a copy of Throne of Eldraine. Choose "Blue" as its color as it enters the battlefield.
4. 4Resolve Whim of Volrath, changing nothing and returning it to your hand.
5. 5Repeat.

Effects

• Infinite colored mana that can only be spent to cast monocolored spells
• Infinite copies of permanents you control
• Infinite creature ETB
• Infinite creature tokens
• Infinite landfall triggers
• Infinite magecraft triggers
• Infinite storm count