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Molten-Core Maestro
{1}{R} · Creature — Goblin Bard
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.
Rulings (2)
Mar 20, 2026 · An opus ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered or otherwise leaves the stack.
Mar 20, 2026 · Molten-Core Maestro's last ability is not a mana ability. It uses the stack and can be responded to.
LegacyLegal
VintageLegal
ModernLegal
PioneerLegal
StandardLegal