Chimera lightning orbs always go for healers, even tough other party members are targetted.

ISP: Bredbånd Nord.

Type of Internet Connection: Fiber

Internet Connection Speed: 60/60 mbs

Date & Time: November 3rd, 2013, 2 AM GMT+2

Frequency: Always

Character Name: Lana'lein Fune

Race: Miqote

World: Excalibur

Class/Level: White mage Lv. 39

Area and Coordinates: Cutter's Cry dungeon, final boss area.

Party or Solo: Party
Playne Montae (Dragoon)
D'ro Montae (Bard)
Mormonus Wooft (Warrior)

NPC Name: None

Monster Name: Chimera

In-Game Time: Between 3 a.m. to 3 p.m.

Steps:
During the battle vs Chimera, I would cast "Regen" on tank and heal when I needed.
When the Chimera spawned the "Lightning orbs", it always target a random party member first.
But even if he targetted the Dragoon or Bard, the Lightning orbs would ALWAYS come for me (Healer), because my heals apparantly pulled agro.
This is a problem, when the lightning orbs come after the Healer, and Chimera decides to do its wide outer area lightning AoE.

If healer runs in to the Chimera, to avoid the lightning AoE, the Lightning orb will hit the entire party, and create a high risk of wiping everyone, due to paralyze.

If the Healer runs away with the orb, he will get hit by the Chimera's Lightning AoE, become paralyzed and suffer high risk of being killed by the orb, due to paralyze freezing the character in place.

This fight is extremely harsh for healers, as they will always be chased by the orbs.
It seems you need more luck than skill, to actually beat the last boss.

If the orbs actually went for whoever the Chimera target's, then atleast the Healer would be able to Cure and Esuna the one being hit by the wide outer area Lightning AoE.

The wide outer area Lightning AoE mentioned here, is when the eye's of the Chimera, burn "Violet".