Tempest Lizard

The Tempest Lizard is a boss that resides in an isolated area in the Suhalla Desert in the original Golden Sun. You are able to reach it by heading into the cave north of where you find the Mars Djinni Flash.

Upon finding the Tempest Lizard, it doesn't actually show up looking like a monster. Rather, the Tempest Lizard initially appears to be a large whirlwind known as the Hellstorm. Upon dousing the Hellstorm, the Tempest Lizard will appear. It is a stronger version of a Storm Lizard. While it is significantly stronger than the Storm Lizard, it is still easy to overcome with adequate planning.

The Tempest Lizard uses powerful Jupiter-based Psynergy, such as Wing Stroke and Sonic Slash. It has 3,000 Hit Points, 45 Psynergy Points, and ratings of 295 Strength and 94 Defense. It is weak to Venus-based attacks, so an Adept like Isaac is your greatest weapon, especially with the powerful Ragnarok spell.

On a side note, if you decide not to douse the Hellstorm, and instead step inside it, you will be transported to Crossbone Isle, home to the most difficult dungeon in the game and that of Deadbeard, the incredibly strong boss of the Crossbone Isle dungeon.