So i am figthing a dude in arena 4000 plus points in arena. He has higher speed than my team. The problem i found is that at least 3 out of 4 characters are equipted with indestructable set, so my rotos can't do nothing against them. 3 times i hit them with my rotos with a3 and they all took 0 damage. My cardinal have around 225 speed(plus 30% arena speed boost) and lots of resistent. So by the time he has turn, oponent team already done their turn and have almost full turn meters again. So they all have around 300 speed with indestructable sets, and its just after their first week artifact rewards.