I think we all have been waiting on it for a long time, i dont think anyone would disagree that it would be a great addition for us. However we will probably still have a good bit of time to wait, its a small function and with the games flaws and constant updates needing done the development team have probably got it quite far down their list of priorities. Completely agree with everything Gildan said about PvP. Ill also add that asking new players to try and level up birds for that weeks event plus that weeks PvP rules would be way too much, unless they had the rule set to use whichever catagory has the 75% boost in that weeks event. That way new players still only have to focus on levelling up one set of birds plus get a helping hand from the events bird rewards. Also they cant make arena *play this weeks rules or you dont play* because new players might not have 5 (whatever colour or catagory that week is) birds and would need to field feeder birds to make up their team just so they could play, which would cause them to get crushed by the trophy matching system since newer players can have the same amount of trophies as me, but will have an incomplete team and if the AI chose my team for them to play against, they would have no chance of winning.