I am recommending some skills
For either passive or active skills
Camouflager: turns invisible for sometime has cool down. But can be hit by active skills or maybe normal hit.
Body smash: While jump in the air, press x to slam nearby oppenents.
Second chance: When fallen into lava, it get revives only once. Dosent work if you got whacked to death. And you hp must be at least orange or blue.
Booms away: Deals 50% of your current hp to the opponent . Must aim or misses. Only works when red hp.
Wings: Enable you to fly when jumping for a limited short time. Needs cooldown
Armours up : Gives 100% armour when hp is red.
Speed booster/ Jump booster: Push ownself a distance when jumping or walking.
Illusion: Gives 1/2 illusions of own. Needs cooldown. Images takes 150% more damage and deal 90% less dmg then normal.
Summoner: Summons a merc for pvp only<<( cannot be OP Merc or coin merc)
Thats all i can think of for the time being please rate and tell which skill is accepted.