Hi, I wanted to write some feedback on this season. I have played the previous 4 seasons too and there are some things which I would like to comment on.
Temporal Vortex (TV)
I feel like TV is now too simple of dungeon/challenge as pretty much everyone uses Wild element as the boss is only single target. The rotation of the buffs doesn't even matter, regardless of the buffs, Wild element is just too strong and you don't need to change anything. In my opinion, the best thing would be to change it similarly to the Continental Challenge where the boss would either have multiple targets or the buffs would benefit particular elements or there might be debuffs for some elements/damage type.
Grand Gladiator Arena
I think the arena suffers from similar thing as the TV. Ice (Permafrost) element is overpowered in arena and it is used like 80-90% of all time. It's similar to the shadow element before in season 3 and 4. Basically both elements have shortest recharge time and insane PvP damage. This is especially with Hvitar's who I think executes enemies even if they have Monelisse's Teardrop or other Immortality buff. And if you combine it with Clean Sweep equipment, even the debuffs on her wouldn't help you that much. I understand that there are heroes designed for PvP or single target dmg etc., but I don't think it should be to the extent where one combination/element is used 80%-90% of time. For me, it feels quite boring and I would for example want to see weekly (possibly daily) rotation of some buffs or debuffs for elements, so it is more interactive.
Equipment
Some people have already wrote about it, but the drop rate of getting correct mythic equipment is quite bad. For some of the important stats like ATK% or Enlightenment I have just one Armor or Glove per set (1 out of 22) . It would be nice to either have possibility to increase drop rate for core stats or just remove the atk, def, hp as they are too weak and no one uses them, especially for mythic equipment.