Dullahan

Dullahan is an optional superboss in Golden Sun: The Lost Age and is considered the most powerful enemy in the series. He is located at the end of the optional Anemos Sanctum dungeon. He must be defeated to gain access to the Iris summon sequence. He resembles a headless suit of blue armor.

At the end of the Anemos Inner Sanctum, arrange six blocks to form a bird pattern, then cast the Hover Psynergy while standing on it to be automatically transported to the Dullahan battle. Dullahan stands in front of Iris’ summon tablet, and he will make his challenge:


 * “I am the shadow, the keeper of light. If you want the sun’s power, show me your own.”

Battle stats
Dullahan possesses 16,000 Hit Points which regenerate 200 HP per turn, 300 PP which regenerate 100 PP per turn, 676 Attack, 269 Defense, 241 Agility, 59 Luck, and acts three times per turn. This gives him the award for largest HP, Attack, Defense, Luck, and average stat values of all monsters. He is most resistant to Mercury attacks and his other resistances in decreasing order are to Venus, Mars, then Jupiter. When felled, he yields 15600 Experience and 6775 coins, and you can obtain the Iris summon sequence.

Dullahan’s arsenal of moves are as follows: He can attack physically, cast the Bind, Haunt, Curse, and Condemn Psynergies, and has several extremely powerful monster skills: Formina Sage (he swings a long purple lightning sword through an Adept, doing extreme damage that often downs that party member), True Collide (dark energy does moderate damage to several adepts and adds that damage to Dullahan’s own HP), Element Swap (changes his elemental affinity), and the crippling Djinn Storm (puts all Djinn of all current battling Adepts in recovery; only the Doom Dragon shares this skill). As an ultimate move, Dullahan can freely summon Charon itself, one of the strongest Summon Sequences normally reserved to the player’s party, and it will certainly down several Adepts.

Battle strategy
It is nigh impossible to battle Dullahan without heavy usage of summon sequences. Even at level 99, Dullahan is still too strong to deal with using weapons, Psynergy, and Djinn effects. The only way to defeat this opponent is to unleash nothing but summons with your first party, then once Dullahan finishes them off the back-up party launches nothing but summon spells like before, and hope that any of the party is among the last standing.