This issue is a variant of Doctor Strangefate (DC / Marvel, 1996 series) #1 [Direct Edition]. There exist further variants.
Amalgam characters: Dr. Strangefate: Dr. Fate, Dr. Strange and Charles Xavier; Aboninite: Hellgrammite and Abomination; Myx: Wong and Mr. Mxyzptlk; Skulk: Hulk and Solomon Grundy; Jade Nova: Green Lantern [Kyle Rayner] and Nova [Frankie Raye]; White Witch: Zatanna and Scarlet Witch.