Iris Robe

The Iris Robe is a Robe-class armor found in Golden Sun: The Lost Age. It is found in a treasure chest deep in Treasure Isle, in the portion accessible only with the Lift Psynergy. Being a Robe, it can be equipped by Jenna, Ivan, Sheba, and Mia. Its buy value is 16600 coins and its sell value is 12450.

The Iris Robe increases the wearer's base defense by 47, Mars resistance by 30, PP recovery by 12, and Luck by 15. As a Robe, the Iris Robe is one of the most valuable in late-game parties, as it regenerates PP at a rate unsurpassed by any other piece of equipment, with only the Psychic Circlet being equivalent. To add to the item's practicality, it has a large repertoire of defensive attributes. The Mars Resistance boost makes it very practical against late-game bosses, such as the Flame or Doom Dragon(s), while the Luck boost makes it more difficult for enemies inflict the adept with status effects. Finally, the Iris Robe has a high defence rating to boot. This makes practical a strategy of having an Adept (such as Mia in her Water Seer class series) cast Wish constantly without fear of running out of PP, (and hence HP) or being afflicted with a status effect. Add to this that Mia's default class has a high luck rating and that her Mercury Power will be naturally high (and can be increased with items such as the Clear Bracelet), and the party becomes virtually invincible. The most notable exception is Dullahan, who's ability to down Adepts in one hit as well as drain the party's Djinn make this strategy an exercise in futility.

The Iris Robe may be considered inferior to the Mysterious Robe, which also regenerates PP, but at a lower rate as this other robe has a HP restoring effect as well as a higher defence boost (by 1 point). Upon closer inspection, this may be considered negligible, as 1 defence is trivial and the HP effect can be emulated by casting curative Psynergy repeatedly. However, for an offensive strategy involving a Adept such as Ivan casting Psynergy such as Spark Plasma repeatedly instead of healing-oriented ones, the HP recovery may be considered to be more valuable. It is thus up to the player as to which one is better, but it is very probably that both will see end-game use regardless.