For 10 points, name this king of the Fomorians with a big evil eye.
According to one story, this figure's remains were used to poison a tree that Manann dug up, leading to about two dozen of his men dying when investigating it. According to another story, this person stole a cow that could produce twenty gallons of milk a day and chained it to Innisboffin, the "Island of the Beautiful Cow." Another story about him claims that he was responsible for the color of the Cloch Cinfaeladh or the stone of the blood head.  He was responsible for wrapping up three babies into a cloth fastened with a pin and tossing them into a whirlpool, but the one raised by Biroge had survived and grew up to be a smith. Earlier, he had imprisoned his daughter Ethlinn in a crystal tower. One weapon of this figure was only usable when nine hooks or four forks opened it, but at the field Magh Tuired, it was shot, causing the enemies of Lugh to be vanquished. For 10 points, name this king of the Fomorians with a big evil eye.
According to one story, this figure's remains were used to poison a tree that Manann dug up, leading to about two dozen of his men dying when investigating it.
Balor of the Evil Eye