Ivy, Gleeful Spellthief + Snap + Mnemonic Wall + Simic Growth Chamber + Lotus Field

Ivy, Gleeful Spellthief

Snap

Mnemonic Wall

Simic Growth Chamber

Lotus Field

How it works

1. Activate Simic Growth Chamber and Lotus Field by tapping them, adding .
2. Cast Snap by paying 1, targeting Mnemonic Wall.
3. Ivy triggers, copying Snap, targeting Ivy.
4. Resolve the copy of Snap, returning Ivy from the battlefield to your hand and untapping Simic Growth Chamber and Lotus Field.
5. Activate Simic Growth Chamber and Lotus Field by tapping them, adding and three mana of any color.
6. Resolve Snap, returning Mnemonic Wall from the battlefield to your hand and untapping Simic Growth Chamber and Lotus Field.
7. Cast Ivy by paying .
8. Cast Mnemonic Wall by paying 4.
9. When Mnemonic Wall enters the battlefield, it triggers, returning Snap from your graveyard to your hand.
10. Repeat.

This ingenious loop turns Ivy, Gleeful Spellthief into a brilliant catalyst by leveraging her unique ability to copy single-target spells. When you cast Snap targeting Mnemonic Wall, Ivy steps in to duplicate it, letting the copy bounce Ivy herself back to your hand while the original spell returns the Wall—all while Simic Growth Chamber and Lotus Field generously untap to refund your mana investment with interest. Replaying Ivy and Mnemonic Wall resets the entire engine, letting the Wall fish Snap back out of your graveyard to perpetuate the cycle indefinitely.