Mikaeus, the Unhallowed + River Kelpie + Carrion Feeder

Prerequisites

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Steps

1. 1Activate Carrion Feeder by sacrificing River Kelpie.
2. 2When River Kelpie dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. 3When River Kelpie enters, its first ability triggers, causing you to draw a card.
4. 4Resolve the Carrion Feeder ability.
5. 5Activate Carrion Feeder by sacrificing River Kelpie.
6. 6When River Kelpie dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
7. 7When River Kelpie enters, its first ability triggers, causing you to draw a card.
8. 8Resolve the Carrion Feeder ability.
9. 9Repeat.

Effects

• Infinite card draw
• Infinite draw triggers
• Near-infinite +1/+1 counters on a creature
• Near-infinite death triggers
• Near-infinite ETB
• Near-infinite LTB
• Near-infinite sacrifice triggers