Squall, SeeD Mercenary, Fear of Missing Out, and Bloodflow Connoisseur

Prerequisites

• Squall, SeeD Mercenary on the battlefield
• Fear of Missing Out on the battlefield
• Bloodflow Connoisseur on the battlefield

Steps

1. Declare Squall and Fear of Missing Out as attackers
2. Fear of Missing Out's second ability triggers, untapping Squall and causing you to get an additional combat phase after this one
3. Holding priority, activate Bloodflow Connoisseur by sacrificing Fear of Missing Out
4. Deal combat damage to an opponent using Squall, triggering Squall's second ability, returning Fear of Missing Out from your graveyard to the battlefield
5. When Fear of Missing Out enters the battlefield, its first ability triggers, causing you to rummage
6. Repeat each combat phase

Results

• Infinite self-discard triggers
• Near-infinite ETB
• Infinite draw triggers
• Near-infinite LTB
• Infinite rummaging
• Near-infinite death triggers
• Near-infinite sacrifice triggers
• Near-infinite combat damage
• Near-infinite combat phases
• Near-infinite +1/+1 counters on Bloodflow Connoisseur