Bottom-Tree Striker
Yeah, it got nerfed.. for a full overview read the twab: https://www.bungie.net/en/Explore/Detail/News/50880
here is an excerpt from bottom tree striker...
Knockout
Melee lunge range and melee damage bonus now deactivate after a melee kill.
Trample
Super energy gain from Fist of Havoc light attack decays to minimum increase over three PvP kills (down from seven).
Frontal Assault melee
Increased cooldown from 82 to 106s.
Fist of Havoc
Heavy slam radius reduced from 8m to 6m (bottom-tree only).