Diminisher Witch

You may sacrifice only one artifact, enchantment, or token to pay a spell’s bargain cost.

In rare cases, a spell or ability might attempt to create a Role token enchanting a permanent that it can’t legally enchant (because of an ability like protection from enchantments). In such cases, the Role token isn’t created.

Some instant and sorcery spells require additional targets if they’re bargained. You ignore those targeting requirements if those spells aren’t bargained, and you can’t bargain those spells unless you can choose the appropriate targets. On the other hand, you can bargain a permanent spell even if you won’t be able to choose targets for an enters-the-battlefield ability of that permanent once the spell resolves.

Roles are colorless enchantment tokens. Each one has the Aura and Role subtypes and the enchant creature ability.

Cards in the Wilds of Eldraine main set create six different Role tokens: Cursed, Monster, Royal, Sorcerer, Wicked, and Young Hero. A seventh Role token, Virtuous, is created by Ellivere of the Wild Court, the commander of the “Virtue and Valor” Commander Deck.

A permanent can have multiple Roles attached to it if each one is controlled by a different player.