Stregoneria
Le creature che controlli hanno intimidire fino alla fine del turno. (Ciascuna di quelle creature non può essere bloccata tranne che da creature artefatto e/o creature che condividono con essa un colore.)
If an attacking creature has intimidate, what colors it is matters only as the defending player declares blockers. Once it’s blocked, changing its colors won’t change that.
A multicolored creature with intimidate can be blocked by any creature that shares a color with it, in addition to artifact creatures. For example, a white-blue creature with intimidate can be blocked by white creatures and/or blue creatures, no matter what other colors they are.