Molten-Core Maestro (Secrets of Strixhaven Promos #125p)

Creature — Goblin Bard - {1}{R}
Menace
Opus — Whenever you cast an instant or sorcery spell, put a +1/+1 counter on this creature. If five or more mana was spent to cast that spell, add an amount of {R} equal to this creature's power.
2/2
„"My media? Fury and flame."“