Problem with static abilities.
I was recently playing in arena and had a problem with two static abilities that conflicted. The elesh norn grand cenobite ability and the emblem of a Planeswalker. The elish norn ability gives the controller's creatures +2/+2 and the opponents -2/-2 well if you have the emblem from the Planeswalker ellywick tumblestrum or any other static buff to the power and toughness of your creatures and your opponent is using elesh norn you can kiss goodbye your entire field while you're buffing your opponents creatures by as much as your buffing should be. I had this very situation happen to me. I had a creature that had a power and toughness of all of the following 1,2,3,4,6,7 while I had static abilities that buffed my creatures by +4/+4 so because of the total amount of my static buffing my creatures should have been getting an actual bonus of just +2/+2 but instead of them getting that the instead got -6/-6 and so I lost every single creatures except for two. My opponent shouldn't have had lethal damage either except for the screwed up code that applied my bonuses to their creatures so now I have an opponent who is getting +6/+6 to their creatures while mine are getting-6/-6 it wasn't like I had a copy of elesh norn but nope it was worse than that because this is an error that has been happening for a while now and still hasn't been fixed or banned for some stupid reason. What makes it so much worse is if both you and your opponent have elesh norn in play it will sometimes result in all creatures getting infinity symbols for their power and toughness or whomever plays elesh norn first getting the infinity/infinity army. I have never seen a game that has consistently been plagued with so many easily solved problems that is supposed to be a money making service for a company that the company refuses to fix while they expect people to keep playing and putting money into.