From Destiny 2 Wiki
Palm is a melee attack available to Warlock. It has a notably slower cooldown, but has greater range compared to the melee attacks of other classes.
- Extended melee range to 5.5m from 4.5m.
- The Warlock melee range is now one meter longer than Titan and Hunter melees.
- Note: Ophidian Aspect melee range is unchanged at 6.5m.