
Molten-Core Maestro
{1}{R}Creature — Goblin Bard2/2
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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.
Keyword reminders
Menace. This creature can't be blocked except by two or more creatures. · CR 702.111
Official rulings
- 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. (2026-03-20)
- Molten-Core Maestro's last ability is not a mana ability. It uses the stack and can be responded to. (2026-03-20)
Cards like this
Functionally similar cards by meaning — playable in Molten-Core Maestro’s colours.







