Your opponents control at least three artifacts and/or enchantments.
Mana Needed
({1} magic symbol) ({WU} magic symbol) ({R} magic symbol) ({R} magic symbol) , plus commander tax if applicable, plus one additional red, white, or blue mana if opponents control exactly three artifacts and/or enchantments available.
Steps
Cast
Vadrok for its mutate cost by paying ({1} magic symbol) ({WU} magic symbol) ({R} magic symbol) ({R} magic symbol) , merging it under
Dockside Extortionist.
The
Dockside Extortionist mutated creature's ability from
Vadrok triggers, casting
Heat Shimmer from your graveyard without paying its mana cost.
Resolve
Heat Shimmer, creating a token copy of the
Dockside Extortionist mutated creature with haste.
The token copy of the
Dockside Extortionist mutated creature triggers, creating at least three Treasure tokens.
Activate three Treasure tokens by tapping and sacrificing them, adding ({U} magic symbol) ({R} magic symbol) ({R} magic symbol) .
Cast
Snap by paying ({1} magic symbol) ({U} magic symbol) , returning the nontoken
Dockside Extortionist and
Vadrok from the battlefield to your hand and untapping two lands you control.
Cast
Vadrok for its mutate cost by paying ({1} magic symbol) ({WU} magic symbol) ({R} magic symbol) ({R} magic symbol) , merging it under the token
Dockside Extortionist mutated creature.
The token
Dockside Extortionist mutated creature triggers once for each of its
Vadrok abilities.
Resolve one of these triggers, casting
Heat Shimmer from your graveyard without paying its mana cost.
Resolve
Heat Shimmer, creating a token copy of the
Dockside Extortionist mutated creature with haste.
The token copy of the
Dockside Extortionist mutated creature triggers, creating at least three Treasure tokens.
Activate three Treasure tokens by tapping and sacrificing them, adding ({U} magic symbol) ({R} magic symbol) ({R} magic symbol) .
Resolve a second trigger from step 8, casting
Snap from your graveyard without paying its mana cost, targeting the mutated creature that includes the nontoken
Vadrok.
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.
Resolve any remaining triggers from step 8, casting any noncreature cards with mana value 3 or less that were not already cast since step 8 from your graveyard without paying their casting costs.
Repeat from step 7, adding one additional token
Vadrok to each new iteration of the
Dockside Extortionist mutated creature token.
Results
Infinite colored mana.
Infinite ETB.
Infinite LTB.
Infinite magecraft.
Infinite storm count.
Infinite Treasure tokens.
Infinite casts of noncreature cards with mana value 3 or less from your graveyard.