Brass's Bounty, creating a Treasure token for each land you control.
Holding priority, activate
Shilgengar by sacrificing
Lutri.
Activate five Treasures by tapping and sacrificing them, adding ({W} magic symbol) ({U} magic symbol) ({B} magic symbol) ({R} magic symbol) ({G} magic symbol) .
Activate
Horde of Notions by paying ({W} magic symbol) ({U} magic symbol) ({B} magic symbol) ({R} magic symbol) ({G} magic symbol) , causing you to cast
Lutri from your graveyard without paying its mana cost.
Repeat from step 3.
Notes
You can start the combo instead at step 7 if
Lutri is in your graveyard. This changes the mana needed to ({6} magic symbol) ({W} magic symbol) ({U} magic symbol) ({B} magic symbol) ({R} magic symbol) ({R} magic symbol) ({G} magic symbol) .
Results
Infinite Blood tokens.
Infinite ETB.
Infinite LTB.
Infinite Treasure tokens.
Infinite colored mana.
Infinite death triggers.
Infinite draw triggers.
Infinite magecraft triggers.
Infinite recursion of Elemental cards in your graveyard.