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The Hollow King is the third and final boss the player will encounter. He has his own island arena, a level 30 area, World's End

Hollow King Boss Fight


Behavior

When arriving at the arena, The Hollow King awaits, along with 3 Shadow Crystals. Until the player strikes one of the crystals, nothing will happen. Once struck, the boss will begin attacking the player. The Hollow King spins toward the player in an almost unavoidable attack with his giant sickle: The Spin Sickle! Fortunately, this attack does a minimal amount of damage. Following the Spin Sickle, the king proceeds to hurl three volleys of astral orbs at the player. These are devastating if not dodged. Meanwhile, the player can attack the Shadow Crystals.

Icon form Hollow King

Once all crystals are destroyed, the Hollow King will revert to icon form and be vulnerable to attack. If at any time the player leaves the platform, the player will be safe but the fight will be fully reset.

Combat and Tactics

If the player concentrates on dodging the astral orbs then they won't take much damage. Failing to do this will be costly! That doesn't leave much time for attacking the crystals. Use the auto-lock feature to lock on to a target then face the boss to dodge the volleys while blindly attacking the crystals. The boss is very vulnerable to Light Damage and resistant to Dark Damage, so choose your weapon or spell accordingly.

Drops

The Hollow King will always drop at least 2 Recipes but may sometimes drop 3 or 4 ones (all different). The recipe for Relic of Light does not count towards those, so if you are one extremely lucky drop God, he may drop it along with 4 other recipes.

Experience Points 100% 2:1 (4362)
Gold Coins 100% 8:1
Titanium Ore 100% 4-6:1
Titanium-Plate Block 100% 8-12:1
Gossamer 100% 4-6:1
Refined Moon Opal 100% 1-3:1
Refined Sun Diamond 55% 1:1
Titanium Bar 10% 1:1
Mighty Healing Potion 31% 1-2:1
Mighty Mana Potion 34% 1-2:1
Oz, the Sinister Shadowblade ?
Buccaneer's Sabre ?
Titanium Fist 5% 1:1
Mother-Of-Pearls 2% 1:1
Recipe for Angelic Ring 3% 1:1
Recipe for Vengeful Ring 3% 1:1
Recipe for Electro Damage Protection Flask 7% 1:1
Recipe for Fluffy's Speed 5% 1:1
Titanium Ceremonial Dagger 10% 1:1
Titanium Bonegrinder 13% 1:1
Titanium Scalpel 8% 1:1
Recipe for Planetary Strike II 47% 1:1
Recipe for Relic of Light 21% 1:1
Dark Prince pet 6% 1:1
Cape of Wings ?

Trivia

  • There's a rare visual bug where if you kill the last Shadow Crystal right after the Hollow King started spinning, he will explode during its spinning animation and his remains (mask) will spinn trough the vulnerability phase.
  • As of Patch 1.3.0 some recipes for weapons no longer drop, but the weapons themself instead drop.