Grimgrin, Corpse-Born + Necrotic Ooze + Steward of Solidarity

Prerequisites

• Necrotic Ooze does not have summoning sickness.

Steps

1. 1Activate Necrotic Ooze using Steward of Solidarity's ability by tapping and exerting it, creating a 1/1 Warrior creature token.
2. 2Activate Necrotic Ooze using Grimgrin's ability by sacrificing the Warrior, untapping Necrotic Ooze and putting a +1/+1 counter on it.
3. 3Repeat.

Effects

• Infinite +1/+1 counters on a creature
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers