Saheeli's Artistry, Mnemonic Wall, and Great Whale

Prerequisites

• Saheeli's Artistry in hand
• Mnemonic Wall on the battlefield
• Great Whale in hand
• available

Steps

1. Activate up to seven lands by tapping them, adding at least
2. Cast Saheeli's Artistry by paying , creating a token copy of Great Whale that is an artifact
3. When the Great Whale token enters, it triggers, untapping up to seven lands
4. Cast Mnemonic Wall by paying its mana cost
5. When Mnemonic Wall enters, it triggers, returning Saheeli's Artistry from your graveyard to your hand
6. Activate up to seven lands by tapping them, adding at least
7. Cast Saheeli's Artistry by paying , creating a token copy of Mnemonic Wall and the Great Whale token
8. When the Mnemonic Wall and Great Whale tokens enter, they trigger
9. Resolve the Mnemonic Wall token's trigger, returning Saheeli's Artistry from your graveyard to your hand
10. Resolve the Great Whale token's trigger, untapping up to seven lands
11. Repeat from step 6

Results

• Infinite ETB
• Infinite storm count
• Infinite creature tokens
• Infinite mana lands you control can produce
• Infinite magecraft triggers
• Infinite untap of lands you control
• Infinite recursion of instants and sorceries from your graveyard
• Infinite copies of any creatures on the battlefield
• Infinite copies of any artifacts on the battlefield