Leechmonger | Demons Souls Wiki

Video Strategies

 

Melee Strategy

• Make sure you have some Turpentine or Sticky White Stuff to apply to your weapon, or alternatively use a Dragon weapon (Dragon Long Sword +3 for instance will make short work of him). Standing on the uppermost level will make you safe, so use the opportunity to cast Protection, and if you have a Regenerator's Ring equip that. Then simply go down a level or two until it begins attacking you, walk right up to it and whack him hard several times. Then roll away as it tries to attack you. While out of the way of its attack, by all means use the opportunity to heal yourself if you need to. You shouldn't need to use many healing items if you focus on attacking it quickly.
• Alternate: You can find an easy hideout at ground level where the archstone for the next level would normally be. Move toward the fog, passing under some wooden supports. The enclave is a slightly raised spot of land to your left. You can safely use it to refill your mana and health, then move back and forth between it and the Leechmonger. This strategy is not limited to melee fighting.

Ranged strategies

For all ranged strategies, the idea is to get Leechmonger to continually spit the leech balls. As long as it is doing that, it won't regenerate. So keep healing items on hand, so you can heal up if one hits you. Do not back away, or it will regenerate.

Bow from the entrance - Hyper Mode

• If you have a bow, this is easy. It's not necessary to have a Lava Bow, a Compound Long Bow +3 will do the job. Stay at the entrance. It will regenerate his health quickly, so a trick is to let yourself get to less than 30% health before entering, then equip the Clever Rat's Ring. If you aim for its head or torso, you should do damage. With the Clever Rat's Ring, you should do more damage than it can regenerate. 
• Note: It's not absolutely necessary to have the Clever Rat's Ring to use the above method on NG. Just bring plenty of arrows (200 to be safe) and at least a Compound Long Bow +3 with dexterity at minimum in the mid 20s.

Low Dexterity safe spot

• On your first play through, in fact, you can easily take him down with about 100 arrows (or less) even with a fairly low Dexterity (dex 12 for instance) and a non-upgraded composite bow. If you make your way around the first level, past where the path turns to the right sharply and you cross a chasm, you will approach lock-on range. While locked on, back up against the wall to avoid its ranged attack, then slowly move forward until your arrows connect with it instead of the walkway. If done at the right spot, you can shoot it while its ranged attack will hit the walkway at your feet.

Safe Zone for Max damage

• Make your way down to the valley, all the way down (just run to avoid leech balls). There are two opposing gaps on the same level as the Leechmonger. One is at the Shard of Suckerstone and the second one is the space near the Archstone. Feel free to stand below the walkway. The walkway will protect your head from the giant leech balls. Easy to lock-on. Should only take about 1/2 the amount of arrows normally used. (Lava Bow even without the stat requirement and Fire Arrow should only take 20-30 shots to kill ~150 fire damage per shot)

 

Magic strategies

Just as with ranged strategies, the idea is to get Leechmonger to continually spit the leech balls. As long as it is doing that, it won't regenerate. So keep healing items on hand, so you can heal up if one hits you. Do not back away, or he will regenerate.

Firestorm

• Firestorm utterly destroys it. Stand next to it and cast it right after one of its attacks. Usually it only takes one cast, even with low magic. NG+ may take a bit longer.
• Going in Hyper Mode (less than 30% HP with Clever Rat's Ring and Morion Blade) ensures that anyone, even with a low Magic level, will be able to kill him in one Shot. Just ensure not to be attacked or cast Second Chance.

Fire Spray

• From the entrance of the cave make your way left along the wall towards the first small plateau, just after a rocky outcropping beneath you. From here you can target Leechmonger and all you have to do is use Fire Spray continually. It will shoot leechballs at you, but they shouldn't hit you.

Soul Ray

• From the entrance of the cave make your way to the plateau with the fence at the front. Make sure to equip Insanity Catalyst, Morion Blade, Monk's Head Collar, Ring of Magical Sharpness, Clever Rat's Ring. The game seems to give a very large damage bonus to spells when combining the attack power increase items. The large plateau, fence, and wide walkway down is a good spot for strafing in and out. 

Attacks & Counters

• The Leechmonger is very weak to fire, and pretty much everything else for that matter.
• Leechmonger can regenerate its health.

Leechmonger Lore

A predatory mass of blood-sucking leeches brought together in a writhing, sentient blob by the power of a demon's soul. The Leechmonger hides in wait, submerged in a pool of scum until the player enters its midst, at which point it will burst from the foul depths and begin its attack. The Leechmonger never moves from the pit of muck that it dwells in, and instead lashes out with its two "arms" to hurl chunks of leeches at its victims.

 

Leechmonger Notes & Trivia

Notes, tips, and trivia of the boss go here.