Maelstrom Muse
About this card
Maelstrom Muse is a creature card in Magic: The Gathering with mana value 4 (color identity: red and blue). Printed in Strixhaven: School of Mages (2021). Legal in Commander, Pioneer, Modern, Legacy and Vintage. Cardmarket price: €0.06.
Maelstrom Muse 



Whenever this creature attacks, the next instant or sorcery spell you cast this turn costs
She's an inspiration to everyone, even herself.
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Legality
Rulings
2021-04-16
To determine the total cost of a spell, start with the mana cost or alternative cost you’re paying, add any cost increases, then apply any cost reductions (such as that of Maelstrom Muse’s triggered ability). The mana value of the spell is determined only by its mana cost, no matter what the total cost to cast the spell was.
2021-04-16
Maelstrom Muse’s cost reduction can reduce only generic mana in a spell’s total cost. It can’t reduce colored mana requirements.