Orvar, the All-Form, Great Whale, and Change of Heart

Prerequisites

• Orvar, the All-Form on the battlefield
• Great Whale on the battlefield
• Change of Heart in hand

Steps

1. Activate up to seven lands you control by tapping them, adding at least
2. Cast Change of Heart with buyback by paying , targeting Great Whale
3. Orvar's first ability triggers, creating a token copy of Great Whale
4. The Great Whale token enters the battlefield, untapping up to seven lands
5. Resolve Change of Heart, returning it to your hand
6. Repeat
7. If you control up to seven lands that can tap to produce at least , this combo nets infinite mana, which you can then target any creatures you control in step 2 to create infinite token copies of them

Results

• Infinite copies of creatures you control
• Infinite creature tokens
• Infinite ETB
• Infinite magecraft triggers
• Infinite mana lands you control can produce
• Infinite storm count
• Infinite untap of lands you control