Onox

Onox is the evil General of Darkness from the game Oracle of Seasons. He, like Veran, is used by Twinrova, but his goal is to fill the land of Holodrum with destruction. He succeeds in his goal by imprisoning Din, the Oracle of Seasons, and sinking the Temple of Seasons. Even though Link defeats him, his purpose is still served, leading to a much greater problem for Link.

To defeat Onox, one must use the spin attack on him until he uses Din. Knock Din away with the rod of seasons and continue to spin attack Onox. Then, you fall into a side scrolling cave and Onox turns into the Dark Dragon. When he puts his hand on the ground, jump on it. Then, charge a spin attack and jump off his hand and hit his jewel on his head.

Note
If you have played Ocarina of Time Master Quest, then that symbol on the switches, blocks and the Mirror Shield is the same one his chest. Also, Onox has a striking resemblance to an Iron Knuckle. Plus, if you have played Majora's Mask than you will realise that Kafei's pendant is a similar design to the tattoo on his armor. And it's also on Zant's outfit. Also after you get Aveil out of her room, there is a picture in a frame with the same symbol. This symbols also appears (as the symbol of the Gerudo Tribe, in stead of the half moon) below the windows that have Nabooru drawing in Wind Waker. And Veran from Oracle of Ages has the symbol on her armor, so whether the items with symbols belonged to the forces of evil or not, it is a cameo through the Zelda history.

Onox also bears a striking resemblence to the Iron Knuckles from Ocarina of Time