The last spell ever gifted to a Knightmareteam. Smirkenorff, rendered benevolent by a CREEP spell, gave this "small charm" to Team 7 of Series 8, after they requested a spell to slow the Corridor of Blades' blades. (SEE: fast potion.) In the event, the team was not shown casting BURST in the CoB, which may suggest that the scene was edited in post-production.
