Mongolian Death Wurm

This Spell Can't Be Countered.
To cast this spell you must control 3 deserts and another commander
Wurms you control gain Vigilance and Menace

When a Non-Token Wurm Enters the Battlefield Choose one:
• Sacrifice 2 Wurms to search your library for a Wurm
Put it into your hand, shuffle, then discard at random
• Or create a 4/4 Green Wurm Token with Trample

Partner with Herd of Khulans