This Pokémon is both [W][D] type.
Poké-BODY: Dark Scale
If Dark Gyarados is your Active Pokémon and is Knocked Out by an opponent’s attack, put 3 damage counters on the Attacking Pokémon.
[W][C] Sharp Fang: 30
[W][C][C] Dark Streak: 40
Flip a coin. If heads, each Defending Pokémon is now Paralyzed.