Holdfast

Your mysticisms have lingering. (Mysticisims with lingering go to the middling after they are played instead of the void)
At the start of each command phase, choose "denizen" or "structure". At the end of each command phase, if you played three or more mysticisms you cannot lose for having no cards of the kind you chose.
At the end of each command phase, if you played one or fewer mysticisms offer Trinir Bangle.