Before the game starts, but after Scouts have been deployed, you may place one Lustrian blot toad marker for each unit of Ripperdactyl Riders in your army (counting only units, not including characters mounted on Ripperdactyls). A single blot toad marker can be placed on any enemy unit on the battlefield, this marker remains throughout the battle.

When engaged in combat with an enemy unit with a blot toad marker, Ripperdactyls (but not their riders) gain the Extra Attacks (+1) special rule, and may re-roll any roll To Hit of a natural 1.