What type of card is Derelor?

Q: What type of card is Derelor?

Derelor is a Creature — Thrull. Its oracle text reads: "Black spells you cast cost {B} more to cast. *"Strength it has, but at the cost of a continuous supply of energy. Such failure can bear only one result." —Execution order of Endrek Sahr, master breeder* Power/Toughness: 4/4"