Bitterthorn, Nissa's Animus (MOC 45)

Legendary Artifact — Equipment • Mana cost: {3} • March of the Machine Commander • Rare

Living weapon (When this Equipment enters, create a 0/0 black Phyrexian Germ creature token, then attach this to it.)
Equipped creature gets +1/+1.
Whenever equipped creature attacks, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
Equip {3}

Illustrated by Titus Lunter.