Underwater Raid
How to Raid an Ocean Monument
The ocean monument is the deadliest structure in the overworld: three Elder Guardians blanket you in Mining Fatigue III the second you arrive, the water drowns you while you fight, and the gold is sealed behind dark prismarine. Win by sequencing it right: kill the Elders, clear the debuff, drain the rooms, then loot.
OXYGEN
Respiration III + Conduit = no drain
Mining Fatigue III
0:30 left
Block break -99.97% · from the Elder Guardian
DRAIN PROGRESS
Place sponge → soaks 7-block radius
3 Elder Guardians · 80♥ total · kill all to clear FatigueSequence the fight: Elders first, water second, gold last
Every mistake in a monument comes from doing things out of order. The trap is trying to mine through Mining Fatigue III, which cuts your break speed by 99.97% and makes a single block take forever. That debuff comes only from the Elder Guardians, and it refreshes whenever one can see you, so cleansing it early is pointless.
Treat it as a kill list. Drop a Conduit for breathing and mining speed, then hunt all three Elders (80 HP each) with a Trident and Prot IV armor. Tank the laser, burst them with Impaling V, and only after the last one dies do you cleanse with milk or wait the timer out. Now your pickaxe works.
Then it's an engineering job. Place sponges to dry a 7-block bubble, mine the eight buried gold blocks for 72 ingots, and clear the wet/dry sponge room. Re-dry sponges in a furnace between rooms so one stack carries you through the whole monument.
Quick answers
+How many Elder Guardians are in a monument?
Exactly three. One sits in the top central room and two guard the wings. Each has 80 HP and applies Mining Fatigue III on sight, so you must kill all three to mine the monument at normal speed.
+How do I get rid of Mining Fatigue?
You can't cleanse it while an Elder Guardian can see you, since it re-applies every few seconds. Kill all three Elders, then either drink milk or wait out the 5-minute timer. Conduit Power does not remove it but speeds mining enough to help.
+What's the best weapon against guardians?
A Trident with Impaling V melts them, dealing roughly 13.5 damage per hit underwater versus the guardian's 30 HP (Elders 80 HP). A Prot IV netherite setup plus Respiration III keeps you alive through the laser and thorn spikes.
+How do I deal with the water inside?
Carry a stack of sponges. Each placed sponge soaks water in a 7-block radius, drying out rooms so you can fight and mine on dry land. Dry wet sponges in a furnace and reuse them. A door or sign can also hold back a single flow.
+How much gold does a monument give?
Eight gold blocks are hidden inside the central pyramid behind dark prismarine, worth 72 gold ingots if you mine them all. You'll also find sea lanterns, prismarine and wet sponges from the sponge room.
+Do I need a Conduit?
Not strictly, but it's a huge help. Conduit Power gives unlimited underwater breathing, night vision and faster mining inside its range, which offsets oxygen pressure and reduces Mining Fatigue's slowdown. Otherwise rely on Respiration III and water breathing potions.
