5: Voidwalker
One of the OGs of the Destiny PvP and Crucible world is still very reliable in TTK Year Two. Nova Bomb is never going to not be great. It’s a wrecking ball that can still easily and instantly wipe entire teams in one fell swoop and leaving a deadly DOT effect in its wake atop objectives when used with Vortex. Also, despite the addition of Nightstalker, Axion Bolt is still unique to Voidwalker and remains one of the most powerful and deadly grenades in the Crucible.
In Year One, Voidwalker greatly benefited from some of its exotics, such The Ram, that added some really helpful modifiers. While they have lost The Ram going into Year Two (which matters in Iron Banner), they are still able to keep other fan favorites such as Obsidian Mind and Voidfang Vestiments. While Voidwalker may leave something to desire in PvE, it’s still a high-end PvP class in Destiny: TTK. It’s only glaring problem is that Nova Bomb requires some skill to use and can easily be botched by sending it straight into a wall or debris.