Chaos Chimera

The Chaos Chimera is the final boss of Golden Sun: Dark Dawn and is fought below the control station of the Apollo Lens, within Apollo Sanctum.

Story
After the Apollo Lens were activated by Matthew and his friends, their way to the control station is blocked by the Chaos Hound. The Hound nearly attacks the party but it restrains itself when seeing Sveta by their side. It continues some inner struggle until Chalis and Blados (who were supposed to be distracted by Arcanus) re-appear and corrupt the hound, forcing it to fight the party alongside the two Dark Adepts. Their assault fails, being it both Adepts or the Chaos Hound defeated and they come up with one last alternative. In an attempt to finally win over the heroes no matter what the cost, they use their full power of the Dark Binding at the Hound. This causes it to go completely berserk, the Tuaparang Duo finds themselves sucked into the beast and together the three fuse into a horrible monstrosity of darkness.

As a Boss
Chaos Chimera has 9640 HP (the highest HP rating in the main story, outclassed by all optional bosses excluding the Star Magician), moderate attack power, medium Mars and Mercury, high Venus and low Jupiter resistance and acts three times per round. Its arsenal is a complete monster skill set, featuring several devastating abilities from which it can choose freely during its turns. The number of available skills increases with the progress of the battle:


 * Attack: A single standard attack.
 * Vicious Embrace: Strikes multiple targets at once with Chalis' claw. Attack power is multiplied by 1.6.
 * Retribution: A wide swing with Blados' sword hits the entire party and may instantly down unlucky Adepts.
 * Shadow Clash: A Summon monster skill resembling a dark version of Cruel Ruin. It pours down a hail of dark energy to inflict massive destruction. Causes damage with a base power rating of 180 plus about 15% of the target's maximum HP with a range of 5 targets.
 * Djinn Blast: This monster skill fires a rainbow-coloured blast at an Adept and puts all his/her Djinni in recovery mode.
 * Shadow Shield: A support monster skill that engulfs the Chimera in dark mist. Reduces all incoming damage to 50%.
 * Darksol Gasp: This monster skill unleashes a swarm of dark spirits, causing Venus elemental damage with a power rating of 200 and Haunt status.
 * Shriek: Screams at a target, causing minor Jupiter elemental damage and paralyzes the target for one turn.
 * Chaos Upheaval: A Summon-style monster skill and probably the boss' most infamous one. The Chimera rises high, charging up for an assault from above and rushes down with catastrophic force. This deals damage with a base power rating of 200 plus about 20% of the target's maximum HP and hits up to 3 targets.

It may also use the Items of Chalis and Blados:


 * Firecracker: An item that causes Mars element damage with a power rating of 140 and range of 5 targets.
 * Psy Grenade: An item that damages PP with a power rating of 25 and a range of three targets.
 * Vial: An item that restores 500 HP to the user.