Whilst in shadow, the rogue can blink to another spot of a similar light level within 60ft as a bonus action, and leave behind a shadow husk that lasts for two turns. At any time, the rogue can blink back to the husk, and if they do it disappears. the husk must be within 60ft to be able to do this. If the rogue attacks an enemy on the same turn as blinking, they gain advantage on the attack.
This ability can be used an amount equal to: The rogues spellcasting modifier+1.