Maestros Diabolist

Deathtouch, haste
Whenever Maestros Diabolist attacks, if you don't control a Devil token, create a tapped and attacking 1/1 red Devil creature token with "When this creature dies, it deals 1 damage to any target."

"Where did I find my horned friend? Now there's a story worth telling. . . ."

Streets of New Capenna

Streets of New Capenna Promos

Maestros Diabolist's triggered ability has an “intervening ‘if'” clause. This means that it checks to see if you control a Devil token both when the ability triggers and when it resolves. Notably, this means that attacking with two Maestros Diabolists will normally cause you to create only one Devil token.