Deception Mastery is a ritual feat available to adventurers with the Ritual Caster feat, and who mastered Change Self and one other . The feat was introduced in the article Heroic Tier Rituals.[Dr405] This feat grants a +2 feat bonus to Bluff checks. When performing a deception ritual, the feat permits using Bluff in place of other skill checks or skill check modifiers. Once per day, the ritual caster with this feat can ignore the component cost of a deception ritual of their level or lower that they have mastered.