Putrid Goblin + First Day of Class + Clickslither

Prerequisites

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Steps

1. 1Cast First Day of Class by paying
2. 2Activate Clickslither by sacrificing Putrid Goblin
3. 3When Putrid Goblin dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
4. 4When Putrid Goblin enters, First Day of Class triggers, putting a +1/+1 counter on Putrid Goblin.
5. 5Resolve the Clickslither ability.
6. 6Repeat from step 2

Effects

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinitely large creature until end of turn