Illaoi Test of Spirit cooldown
This skill. I know this cool down is 20 seconds, but certain characters have abilities that have a longer cool down (FIORA W). If she rushed clever it would be even shorter. Either make it so when somebody becomes a vessel, the ability doesn't go on cool down until AFTER they finished the challenge (SO SHE DOSENT USE E AGAIN UNDER TOWER AND HAVE TO WAIT 10 MORE CANCEROUS SECONDS), give it a smaller width like ahri's charm or a longer cool down (30 seconds.)