Geralf, the Fleshwright + Putrid Goblin + Altar of Dementia

Prerequisites

• Putrid Goblin does not have a -1/-1 counter on it.
• You have had at least one Zombie enter the battlefield under your control this turn.

Steps

1. 1Activate Altar of Dementia by sacrificing Putrid Goblin.
2. 2When Putrid Goblin dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. 3When Putrid Goblin enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on it equal to the number of other Zombies that entered the battlefield under your cotnrol this turn.
4. 4Resolve the Altar of Dementia ability, causing target player to mill cards equal to Putrid Goblin's power.
5. 5Repeat.

Effects

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