Drakes are a heavy tank that features a main cannon and missiles. The turret is rather unique in the fact that it can elevate its cannon to shoot over terrain, a luxury that it's Cabal counterpart (the Goliath) cannot exploit. Missiles are mounted on the sides and can track multiple targets and even destroy incoming projectiles and missiles.
The armor of the vehicle operates such that the plating slides to the side which is facing in the direction of movement.
It is the only player-controllable vehicle to not be featured in the Crucible, likely due to balancing reasons.