What's in the title, what skill would you like to see in 5.1! Possibly with the description.
Obviously since pvp has some exclusive skills, feel free to be creative!

For the AST,
I would like gravity, 60s 2s cast
Deals 20% of targets current hp and apply heavy for 3s. 6yalms radius.

Time dilatation : 90s ability
For 3s, all damage taken by the target turn into a DoT lasting 12s.