Tret

Tret is a tree found in Kolima Forest, and is fought as one of the bosses in Golden Sun.

In Golden Sun, he is a guardian of the forest, and has turned the entire population of Kolima into trees in anger. When the party enters Tret's forest or the town of Kolima for the first time, they are affected by Tret's 'Glamour' which induces a cutscene.

In battle, he resembles a bald, masculine head that has a blue flame surrounding it. Tret mainly uses plant-based Psynergy like Thorn and Growth, but may every so often use a physical attack. Useful Psynergy to use upon him is Mars Psynergy and the Ragnarok Psynergy.

after the battle, it is shown that Tret is dying and that the party need to save him by using some Water of Hermes on him from the fountain at Mercury Lighthouse.

To revive him, the party need to get water from the lighthouse and backtrack to Tret in order to apply it. Once he is revived, more water can be taken and used on the party to recover all HP to one character.