Rousing Refrain in hand or in exile (suspended with one time counter on it).
Pili-Pala and
Dual Casting on the battlefield (
Pili-Pala without summoning sickness and
Dual Casting attached to
Pili-Pala).
Notable Prerequisites
An opponent has two or more cards in their hand.
Mana Needed
({R} magic symbol) plus an additional ({3} magic symbol) ({R} magic symbol) ({R} magic symbol) if
Rousing Refrain is in your hand available.
Steps
If
Rousing Refrain is in your hand, cast it by paying its mana cost. Otherwise, at the beginning of your upkeep, its suspend ability will trigger, removing the final time counter from it and casting it from exile without paying its mana cost.
Holding priority, activate
Pili-Pala by paying ({R} magic symbol) and tapping it, copying
Rousing Refrain.
Resolve the copy of
Rousing Refrain, adding at least ({R} magic symbol) ({R} magic symbol) .
Activate
Pili-Pala by paying ({2} magic symbol) and untapping it, adding one mana of any color.
Repeat from step 2.
Results
Infinite colored mana.
Infinite magecraft triggers.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).