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 listed printings; the most valuable is the Promo Pack printing from PSOS at US$1.22 on TCGplayer's market price. Prices below are the cheapest in-stock listing in the United States.
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