Judith, the Scourge Diva, Skittering Precursor, Sword of the Meek, and Krark-Clan Grunt

Prerequisites

• Judith, the Scourge Diva on the battlefield
• Skittering Precursor on the battlefield
• Sword of the Meek on the battlefield
• Krark-Clan Grunt on the battlefield

Steps

1. Activate Krark-Clan Grunt by sacrificing Sword of the Meek
2. Skittering Precursor triggers, creating a 0/1 Eldrazi Spawn creature token
3. When the Eldrazi Spawn enters the battlefield as a 1/1 due to Judith, Sword of the Meek triggers, returning Sword of the Meek from your graveyard to the battlefield attached to the Eldrazi Spawn
4. Resolve the Krark-Clan Grunt ability
5. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite colorless mana
• Infinite creature tokens
• Infinitely powerful Krark-Clan Grunt until end of turn