Blasphemy

Although blasphemy might look terrible and frightening at first, the sheer strength of divinity makes this card worth it. When upgraded, you can enter divinity and gain 2 energy by doing so on any turn you like. This makes it a brilliant finisher. It is exceptionally powerful in hallway fights but obviously can be lacklustre in boss battles. Note that the death can be prevented by intangible or buffer, as the death is coded as one large hit of damage. Also note that the blasphemy status cannot be stopped with artifact (since it is actually coded as a buff not a debuff).