Boss Phantoms

Boss Phantoms counts as Mini-Bosses in Abyss Event. Boss Phantoms each represent a boss in any mode.

Health
Each boss from a mode has the same propities
 * 450,000 for any Pre-Hard Mode Boss.
 * 900,000 for any Hard Mode Boss.
 * 150,000 for any Extension for PHM Bosses.
 * 450,000 for any Extension for HM bosses.
 * 5.5x Damage/Defence for any Pre-Hardmode Boss.
 * 3.5x Damage/Defence for any Hardmode Boss.

Pre-Hardmode
In this mode, Pre-Hard Mode Bosses count as the bosses in Wave 1.
 * 1) King Slime at 10% Completion.
 * 2) Eye of Cthulhu at 20% Completion.
 * 3) Eater of World at 30% Completion.
 * 4) Brain of Cthulhu at 30% Completion.
 * 5) Queen Bee at 50% Completion.
 * 6) Skeletron at 75% Completion.
 * 7) Wall of Flesh at 100% Completion. The event won't end until it's defeated.

Hardmode
Upon entering the Abyss World you are attacked by Wave 2, which includes hardmode.
 * 1) Mechanical Boss (1st Defeated in that World) at 10% Completion.
 * 2) Mechanical Boss (2nd Defeated in that World) at 20% Completion.
 * 3) Mechanical Boss (3rd Defeated in that World) at 30% Completion.
 * 4) Prime Slime at 40% Completion.
 * 5) Plantera at 50% Completion.
 * 6) Golem at 60% Completion.
 * 7) Cultist at 70% Completion.
 * 8) Moon Lord at 90% Completion.
 * 9) Wall of Steel at 100% Completion