Squall, SeeD Mercenary + Fear of Missing Out + Yahenni, Undying Partisan + Haste Enabler

Prerequisites

• An opponent cannot block creatures you control.
• There are four or more card types among cards in your graveyard.
• Haste Enabler

Steps

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

Effects

• Infinite draw triggers
• Infinite rummaging
• Infinite self-discard triggers
• Near-infinite combat damage
• Near-infinite combat phases
• Near-infinite creature ETB
• Near-infinite creature LTB
• Near-infinite creature sacrifice triggers
• Near-infinite death triggers