Jorn is a modal double-faced card (MDFC), meaning his other side is also a super powerful legendary snow artifact, Kaldring, the Rimestaff
Join me in the sun! Illustrated by Warren Mahy Standard Legal Alchemy Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
Paying life for card and mana advantage is a cEDH-style effect, and in a deck designed to make creatures connect, the hoop you have to jump through is an easy one
If you arent aware, you completely exile an opponents library with Helm of Obedience and any one of those, which is certainly potent
Deathtouch and lifelink give it strong combat presence, too
This doesnt count the Buy-A-Box variant of Satoru