How to Find the Prismarine Arena and Summon a Boss

Locating the Prismarine Arena

Phantasm Addon features two giant bosses, each with its own unique attack patterns. To challenge one of these bosses, you must first discover a generated structure known as the Prismarine Arena.

1. Prepare for a long expedition by packing food, beds, and basic survival gear.

2. Explore your world while keeping an eye out for a large, open arena structure built with prismarine flooring.

3. Once you find the Prismarine Arena, set up a temporary camp and set your respawn point nearby, but far enough away that the boss will not destroy your bed during the fight.

Summoning and Fighting the Boss

Before triggering the encounter, consult your built-in guidebook to make sure you have reached the proper stage in the layered progression system and have the required summoning conditions met.

1. Clear the open arena floor of any standard hostile mobs or obstructions so you have room to dodge.

2. Trigger the boss summon inside the Prismarine Arena as instructed by your guidebook.

3. Watch the giant boss closely during the first phase of the battle to learn its unique attack patterns before committing to heavy melee strikes.

4. Use the wide, flat prismarine floor to maintain distance when the boss winds up an attack, then move in to deal damage using your upgraded skills and custom weapons.