Model Replacement Costume Powers
Model Replacement Costume Powers (also called Shape Shifting Powers or Con[vention] Costumes) are obtained a variety of ways: temporarily (14-day duration) from the Halloween Event and permanently from the Paragon Market, contests, and from conventions and meet-and-greets with the community and development teams. Technically, the Granite Armor and Kheldian Forms are also Model Replacement powers but tend not to be included in this list because they are standard powers available through powersets instead of special outside means.
These toggles completely replace a character's model in-game, up to and including changing the body/gender of the character (and all associated animations and sounds) if applicable because the toggles come with a predefined body/gender. All Model Replacement powers are mutually exclusive with each other. Additionally, all toggle powers whose main purpose is stealth (such as Stealth or Superior Invisibility) are mutually exclusive with any Model Replacement power, but any toggle power with a side effect of stealth (such as Super Speed) and any click buffs and stealth invention enhancements may be freely used.