Magar of the Magic Strings, Etrata, Deadly Fugitive, and Brass's Bounty

Prerequisites

• Magar of the Magic Strings on the battlefield
• Etrata, Deadly Fugitive on the battlefield
• Brass's Bounty in the graveyard
• You control at least seven lands
• available

Steps

1. Activate Magar by paying , putting Brass's Bounty from your graveyard onto the battlefield face down as a 3/3 creature
2. Activate Etrata by paying , exiling Brass's Bounty and causing you to cast it from exile without paying its mana cost
3. Resolve Brass's Bounty, creating a Treasure token for each land you control
4. Activate seven Treasures by tapping and sacrificing them, adding
5. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite colored mana
• Infinite storm count
• Infinite magecraft triggers
• Infinite Treasure tokens
• Infinite casts of instant and sorcery cards in your graveyard