Abilities:

Phase 1:

Feldudius

• Heart of Ice - Grips target dealing increasing frost damage every 2 seconds (2K, 4K, etc).   Magic dispellable, but when near allies, empowers them with Frost Energy allowing additional damage to Ignacious
• Hydrolance - 50K frost damage to random target
• Waterbomb - 10K frost damage to enemies within 6 yards, applies Waterlogged
• Waterlogged - Reduces movement speed by 25%, susceptible to certain frost based attacks, removed by exposing to flame
• Glaciate - Deals massive frost damage to nearby enemies, decreases with distance, those with Waterlogged will gain Frozen Blood
• Frozen Blood - Freezes enemy solid stunning and dealing 20K frost damage per 2 seconds for 10 seconds.

Ignacious

• Burning Blood - Deals increasing (2K, 4K, etc) fire damage to enemy.   Magic dispellable, but nearby enemies empowered with fire energy dealing additional damage to Feldudius
• Aegis of Flame - Shield that absorbs 1M damage and prevents spell interruption
• Rising Flames - Deals increasing fire damage to every player until interrupted, used after above
• Flame Torrent - Inflicts 39K fire damage every second for 3 seconds in 18 yard frontal cone
• Inferno Leap - Leaps at enemy doing 25K fire damage and knocking back all nearby enemies
• Inferno Rush - Rushes back to primary target leaving trail of flame doing 5K fire damage per 0.5 sec, removes Waterlogged

Phase 2:

Arion

• Call Winds - Creates cyclones that do 7K nature damage and gives swirling winds debuff lifting them in the air
• Lightning Rod - Marks enemy to attract electrical attacks, target of Chain Lightning
• Chain Lightning - Fires blast of lightning to all those marked dealing 10K nature damage and bounces to nearby targets
• Disperse - Dissolves and reappears elsewhere in the room
• Lightning Blast - Hits tank for 80K nature damage, used after above
• Thundershock - Deals 150K nature damge to nearby enemies, less effective against grounded targets, more effective against airborne targets

Terrastra

• Gravity Well - Creates well that grounds you granting resistance to electrical attacks for 2 mins, or if lifted up into the air
• Gravity Core - Applied when in Gravity Well, does 10K physical damage every 2 sec for 10 sec, also hinders movement and actions of nearby allies
• Harden Skin - Inreases physical damage dealt by 100% and absorbing 50% of all damage taken up to 650K, when breaks barrier shatters wounding him
• Eruption - Fires spike through floor impaling all within 4 yards doing 50K damage and knocking them into the air, ignores armor
• Quake - Deals 150K damage to all enemies on the ground, more effective against grounded targets, need to be in the air via boss mechanics

Phase 3:

Elementium Monstrosity

• Lava Seed - Showers area with Lava Plumes that erupts dealing 40K fire damage to nearby enemies
• Liquid Ice - Freezes ground underneath which grows as long as the boss stands in it doing Frost damage to enemies in the area
• Electric Instability - Constant nature damage to random enemies doing 6K nature damage, and increases in damage as the fight goes on
• Gravity Crush - Traps enemy in bubble lifting up into air taking 10% of their hp every 0.5 sec for 6 seconds, then drops them for fall damage

Notes:

• General concept is 2 bosses in P1, 2 different bosses in P2, then 1 final one
• When any 1 of the bosses in each phase (1 and 2) reaches 25% hp, the next phase is triggered
• In phase 3, the Elementium Monstrosity is the merged form of all 4 bosses with their remaining hp combined
• Therefore, ideally in each phase, you want to get both bosses as close to 25% as possible to reduced P3 boss' health

Phase 1:

• Split ranged on Feldudius (ice) and melee on Ignacious (fire)
• Glaciate is a aoe tanks have to run out of to reduce damage
• Waterlogged is a debuff you RUN INTO FIRE to remove, else you'll be frozen for 10 sec when Glaciate hits
• Aegis of Flame and Rising Flames is a combo, burn the shield ASAP and interrupt the cast

Phase 2:

• Split ranged on Arion (air) and melee on Terristra (earth)
• Main thing on this phase is 2 raid killing abilities each have
• For Thundershock, run into the void zone looking Gravity Wells
• For Quake, run into the tornados
• Don't have to do it all at once, just time yourself to get it before the cast finishes
• Other thing is, whoever gets (yellow) marked, stay away from everyone

Phase 3:

• Tank and spank burn phase
• Don't stand in stuff
• Ice patches are the new defile, except grows if the boss stands in them