Colette is practically unplayable against assassins now in nulls brawl. Reducing the Gotcha gadget duration down to 0.5 seconds means you need literal superhuman reflexes to stop an Edgar from jumping on you. I have completely dropped her from my Ranked rotation this month.
Nulls brawl is getting a new update with two new brawlers and collaboration with Plants vs Zombies. Did you watch the sneek peak they released a while back?