Encountered Cu Sith in the arena last night, and it was dealing 17 dmg every time it used it’s ability. It’s ability (in the arena) is supposed to do 9 dmg, +4 for each fey or beast unit on the team. I’m guessing Cu SIth is getting counted twice. Since it’s a Fey/Beast
This is crazy high in the arena for a 12 mana cost, especially for an ultra-rare. I did an explore run with a Cu Sith on my team and no other fey or beasts on either team and it is indeed getting a +8 bonus to it’s ability (on top of the portion derived from it’s magic score).
Arena experience was on mobile, and confirmatory explore run was done on PC/Steam version.