
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.
Molten-Core Maestro has 3 printings, first in Secrets of Strixhaven (2026). EDHREC ranks it #7,490 among Commander cards. It appears most in Rootha, Mastering the Moment decks (2,342 on EDHREC). It has 2 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.