The Unbeatable Squirrel Girl by paying ({1} magic symbol) ({G} magic symbol) ({G} magic symbol) ({G} magic symbol) , creating a 1/1 Squirrel creature token for each Squirrel you control.
Activate
Phantom Train four times by sacrificing four Squirrels.
When the Squirrels die,
Pitiless Plunderer triggers four times, creating four Treasure tokens.
Resolve all
Phantom Train abilities.
Activate four Treasures by tapping and sacrificing them, adding ({1} magic symbol) ({G} magic symbol) ({G} magic symbol) ({G} magic symbol) .
Repeat.
Results
Infinite +1/+1 counters on a creature.
Infinite ETB.
Infinite LTB.
Infinite Treasure tokens.
Infinite colored mana.
Infinite creature tokens.
Infinite death triggers.
Infinite sacrifice triggers.
Metadata
In 0 decks according to EDHREC.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).