Scrutiny of the Guildpact

Enchantment

When Scrutiny of the Guildpact enters, you may choose a creature card in your hand. If you do, that card perpetually incorporates {W} and gains "When you cast this spell, create a 2/2 white and blue Detective creature token." Multicolored creatures you control get +1/+1.

Not legal in Commander

View Scrutiny of the Guildpact on Scryfall