Geozard

Geozard is a sword-swinging enemy in Spirit Tracks. They boast powerful armor and shields that are capable of deflecting any initial attacks. In order to be defeated, Link must first command a Phantom to engage it in combat, distracting the beast and leaving it open to attacks from behind.

After acquiring the Whip, Link can defeat Geozards by himself. He needs to use the Whip to snatch their shields and then attack them with his sword.

Geozard Chief
Geozard Chief is a stronger, fiercer Geozard that appears rather rarely in Spirit Tracks. It is more powerful than the normal Geozards, as it is able to breathe a wall of flame at Link and jump huge distances at will. However, it shares the same weaknesses as normal Geozards. Zelda can distract it while possessing a Phantom, allowing Link to attack it's back. After acquiring the Whip, Link can remove its shield and attack alone. To defend against the flame spewing attack, Link can hide behind Phantom Zelda. Interstingly, whenever Zelda possesses a Wrecker Phantom, she can simply roll into these foes, and in three of her hits, they are defeated, without Link even having to touch them - this technique comes in handy in the final room in the last run-through of the Tower of Spirits, where three Geozard Chiefs threaten Link at the same time.

Trivia
These enemies are also known as River Zora, which appeared with this name in ''Phantom Hourglass.