Aberrant Manawurm (SOS) #138 [EN/N]

{3}{G} · Creature — Wurm · 2/5 · Trample Whenever you cast an instant or sorcery spell, this creature gets +X/+0 until end of turn, where X is the amount of mana spent to cast that spell. · "What is the equation for terror?" —Lost research note, Paradox Gardens · Illustrated by Lars Grant-West · Secrets of Strixhaven #138 · EDHREC rank 24017 · Magic: The Gathering, MTG