Skittering Precursor + Sword of the Meek + Weapons Trainer + Arcbound Ravager

Prerequisites

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Steps

1. 1Activate Arcbound Ravager by sacrificing Sword of the Meek.
2. 2Skittering Precursor triggers, creating a 0/1 Eldrazi Spawn creature token.
3. 3When the Eldrazi Spawn enters the battlefield as a 1/1 due to Weapons Trainer, Sword of the Meek triggers, returning Sword of the Meek from your graveyard to the battlefield attached to the Eldrazi Spawn.
4. 4Resolve the Arcbound Ravager ability, putting a +1/+1 counter on it.
5. 5Repeat.

Effects

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