Grimgrin, Corpse-Born + Necrotic Ooze + Thraben Doomsayer

WUB identity

Commander legal

The 3 combo pieces

• Grimgrin, Corpse-Born
• Necrotic Ooze
• Thraben Doomsayer

What must be in place

Necrotic Ooze does not have summoning sickness.

How to execute it

1. Activate Necrotic Ooze using Thraben Doomsayer's ability by tapping it, creating a 1/1 Human creature token.
2. Activate Necrotic Ooze using Grimgrin's ability by sacrificing the Human, untapping Necrotic Ooze and putting a +1/+1 counter on it.
3. Repeat.

What the combo produces

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