Realmbreaker's Grasp
Enchantment — Aura
Enchant artifact or creature
Enchanted permanent can't attack or block, and its activated abilities can't be activated unless they're mana abilities.
The Invasion Tree wasn't merely a conduit through which to breach planes. It was a living, writhing extension of Phyrexia's will.
Illustrated by
March of the Machine#33CommonEnglish