Fiends represent powerful demonic entities in the world of Rune Slayer, serving both as formidable enemies to overcome and potential allies to summon.
These creatures play a significant role in the game’s combat and class systems, particularly for those pursuing the Warlock subclass path.
Finding Fiends Across The Wild
Fiends spawn at certain locations within the game’s demon section. Finding these spawn points requires careful navigation through challenging areas.
Players must complete difficult parkour sections to reach these creatures, with safe zones available for brief respites.
While the demon section itself bears multiple fiend spawn points, this makes it a prime field for farming these creatures.
How To Defeat Fiends In Rune Slayers?
Defeating fiends requires skill and strategy, considering how swiftly these powerful foes can vanquish an unprepared player, particularly with several fiends attacking him at once.
The recommended course of action will help you to defeat the fiends;
- Take on one fiend at a time
- Use knockback abilities to position the fiend on elevated platforms
- Keep it too close to walk off the platform
- And be ready for its leap attack, either parried or dodged.
Critical-hit weapons endowed with natural knockbacks help control the fiend, while several other skills, such as Hindsight Slash, Bloodthirst, and Earth Wall, would suffice.

Fiends drop phenomenal resources, which has much to do with Rune Slayer crafting and progression systems. The significant drops are:
- Demon Hearts
- Fiend Heads
- Demon Hide
- Demon Claws
These materials feature prominently in crafting recipes for high-end weapons.
The Fiendclaw Blade, for instance, requires Demon Claws and Demon Hide, touting physical and fire damage and strength and spirit bozanuses.
Demon Gauntlets and Demonic Greatsword also use materials dropped by fiends to create unique weapons.
The Association Of Fiends With Warlock
The Warlock subclass, available to Magicians at level 30, develops a special relationship with fiends through demonic arts.
Therefore, the Warlocks will receive:
- A Souls resource bar, which represents the number of souls collected
- The possibility to summon Imps (25% of the souls consumed)
- The possibility to summon Fiends (75% of the souls consumed)
- Soul cost refund through the sacrifice mechanic
Warlocks can further improve their abilities by using the Demonic Sacrifice skill at level 38. Sacrificing a summoned fiend gives 2% maximum health every 4 seconds for 30 minutes’ worth of regeneration buff.

Most experienced players have devised many efficient farming paths of maximum fiend encounters.
The most effective method involves cycling between three fiend spawn locations in hell difficulty. This approach allows players to continuously farm fiends by:
- Killing a fiend at one location
- Move to a temperature reset point
- Run to the next spawned fiend on repeat
This process allows continuous collection of fiend resources, though it requires practice to get it right.
Fiend-Related Gear
Besides crafting materials to form powerful items, fiend components contribute to various powerful items.
For example, Elder Boots require Demon hide with Elder Greatwood for a significant armor rating and spirit and agility bonuses.
This is how fiend resources add to every other kind of material to obtain different equipment choices.
Fiends are among the many aspects of Rune Slayer’s diverse monster ecosystem, but they unquestionably make a point to pay special attention to many players because of the classes and the crafting recipes that depend on them.
Mastering fiend fighting, in addition to coming back with good resources, prepares players for major fights later in the game.