Pippin, Warden of Isengard, Krark-Clan Ironworks, Umbral Mantle, and Peregrin Took

Prerequisites

• Pippin, Warden of Isengard on the battlefield
• Krark-Clan Ironworks on the battlefield
• Umbral Mantle on the battlefield
• Peregrin Took on the battlefield
• Pippin does not have summoning sickness
• Umbral Mantle attached to Pippin
• available

Steps

1. Activate Pippin's first ability by paying and tapping it, creating two Food artifact tokens
2. Activate Krark-Clan Ironworks twice by sacrificing the Foods, adding
3. Activate Pippin by paying and untapping it, giving it +2/+2 until end of turn
4. Repeat

Results

• Infinitely large Pippin until end of turn