Vadrok, Apex of Thunder, Peregrine Drake, Quasiduplicate, and Snap

Prerequisites

• Vadrok, Apex of Thunder in hand or in the command zone
• Peregrine Drake on the battlefield
• Quasiduplicate in the graveyard
• Snap in hand
• You control up to four lands that can produce
• , plus commander tax if applicable available

Steps

1. Cast Vadrok for its mutate cost by paying , merging it under Peregrine Drake
2. The Peregrine Drake mutated creature's ability from Vadrok triggers, casting Quasiduplicate from your graveyard without paying its mana cost
3. Resolve Quasiduplicate, creating a token copy of the Peregrine Drake mutated creature with haste
4. The token copy of the Peregrine Drake mutated creature triggers, untapping five lands you control
5. Cast Snap by paying , returning the nontoken Peregrine Drake and Vadrok from the battlefield to your hand and untapping two lands you control
6. Cast Vadrok for its mutate cost by paying , merging it under the token Peregrine Drake mutated creature
7. The token Peregrine Drake mutated creature triggers once for each of its Vadrok abilities
8. Resolve one of these triggers, casting Quasiduplicate from your graveyard without paying its mana cost
9. Resolve Quasiduplicate, creating a token copy of the Peregrine Drake mutated creature with haste
10. The token copy of the Peregrine Drake mutated creature triggers, untapping five lands you control
11. Resolve a second trigger from step 7, casting Snap from your graveyard without paying its mana cost, targeting the mutated creature that includes the nontoken Vadrok
12. Resolve Snap, returning Vadrok from the battlefield to your hand as well as multiple token creatures which cease to exist, and untapping two lands you control
13. Resolve any remaining triggers from step 7, casting any noncreature cards with mana value 3 or less that were not already cast since step 7 from your graveyard without paying their casting costs
14. Repeat from step 6, adding one additional token Vadrok to each new iteration of the Peregrine Drake mutated creature token

Results

• Infinite ETB
• Infinite LTB
• Infinite magecraft
• Infinite storm count
• Infinite casts of noncreature cards with mana value 3 or less from your graveyard