Sinfahld is a dual type Dragon/Poison Legendary Pokémon.
It is not known to evolve into or from any other Pokémon.
It is one of the two main Legendaries of the Raline region.
Sinfahld is a cruel, wicked creature with pulsating purple-and-blue sacs of extremely potent poison. It desires the entirety of Raline to operate under its rule. Sinfahld is hidden deep inside the mountains of the North, said to be plotting its takeover. Although merciless, it believes it has the best interests of Raline in its heart, knowing that its incredible intellect and straightforward ways can help protect Raline from its enemies. However, the trickster Adresis believes its sole purpose is to keep Sinfahld from power, resulting in a quarrel going back eons.
Sinfahld is fought in the tallest mountain in Raline, Mount Nechsin.
Sinfahld's ability, Toxin Flourish, boosts its attack by two stages whenever it is hit by a supereffective move.
Sinfahld's signature move, Sickening Drench, does physical Poison-type damage of 90 and badly poisons the target, but also raises the target's Defense and Special Defense by one stage after the hit.