Ultros, Obnoxious Octopus + Agatha's Soul Cauldron + Crystalline Crawler + Wurmcalling

Prerequisites

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Steps

1. 1Cast Wurmcalling with buyback by paying .
2. 2Ultros's first and second abilities trigger, tapping a creature an opponent controls and putting a stun counter on it, and then putting eight +1/+1 counters on Ultros.
3. 3Resolve Wurmcalling, creating a 4/4 Wurm creature token and returning Wurmcalling to your hand.
4. 4Activate Ultros using Crystalline Crawler's first ability eight times by removing eight +1/+1 counter from it, adding .
5. 5Repeat.

Effects

• Infinite creature ETB
• Infinite creature tokens
• Infinite magecraft triggers
• Infinite storm count