Jason Blood was a world famous occultist. Centuries ago, Jason Blood was magically bonded with the demon Etrigan by Merlin after he had betrayed King Arthur during the age of Camelot. Jason now used his bond with Etrigan to fight off beings of evil magic.
In "The New Batman Adventures" episode titled "The Demon Within", Etrigan and Jason were separated by Klarion the Witch-Boy, and Batman had to reunite the two before Jason aged rapidly to death.
It was interesting to see how Batman, a tough-as-nails and very hands-on type of guy take on the powers of magic and sorcery. Needless to say, the storytelling and visuals for the "The Demon Within" was excellent and I thoroughly enjoyed it :)
Etrigan is a demon and thus has superhuman strength and durability. He is also able to project fire from his body in the form of a blast, a ball, or an explosion. He can also project freezing cold temperatures from his hands. In the form of Jason Blood, he is highly skilled in both armed and unarmed combat and sorcery.
I was rather pleased when I saw that they had released this Etrigan figure. He was one of those DC characters I wanted as a figure done in the animated style and I'm glad I got him.