The Deadweight Spell (incantation: feordupois) is a spell that causes the target to become too heavy to move. There is a counterspell, but its incantation is as yet unknown; it is possible that the Featherweight Charm may be useful in counteracting the Spell. In February 2009, John Manuelito cast the Spell on Alexandra Quick when she found him and Darla Dearborn in the lower basements of the Charmbridge Academy. In March 2009, Quick cast the Spell on an obol to make it unsummonable.