|Adamant bar (8 Noted)||Avantoe seed||Blood rune (60)||Blue charm (3)|
|Cadantine seed||Coins (12,000)||Crimson charm (3)||Death rune (75)|
|Demon slayer boots||Demon slayer circlet||Demon slayer crossbow||Demon slayer gloves|
|Demon slayer skirt||Demon slayer torso||Fire talisman (6 Noted)||Gold charm (3)|
|Green charm (3)||Grimy avantoe (5 Noted)||Grimy cadantine (5 Noted)||Grimy dwarf weed (5 Noted)|
|Grimy irit (5 Noted)||Grimy lantadyme (5 Noted)||Kal'gerion battle commendation *||Law rune (25)|
|Lost tokens||Off-hand demon slayer crossbow||Rune battleaxe||Rune full helm|
|Rune kiteshield||Rune platebody||Rune sword||Sealed clue scroll (elite)|
|Sealed clue scroll (hard)||Starved ancient effigy||Toadflax seed||Uncut diamond (8 Noted)|
|Uncut onyx||Yew seed|
*Once five commendations can be found and once all are used they will no longer be dropped.
|Sealed clue scroll (hard)||1|
|Sealed clue scroll (elite)||1|
These demons are very powerful and it is highly recommended to use Protect from/Deflect Melee or Soul split to greatly reduce the damage you'll take. It is also advisable to use Extreme or better potions and stat boosting Prayers/Curses while fighting them to penetrate their strong defence and strengthen your own.
Although they have no specific weakness, Magic is quite effective and the use of Ice or Blood Blitz/Barrage has the added bonus of freezing the demons or healing you.
The demons themselves are capable of hitting in excess of 1,000 with their standard melee attack, but they also have the ability to use two special attacks once per fight, these are:
- Drag - This is similar to the vacuum attack used by Yk'Lagor the Thunderous in that it heals the demon by 15% (5062) of its maximum lifepoints while hitting up to 1,000 and stunning the player for a short time.
- True Power - Again similar to the attack used by Yk'Lagor, the demon will jump into the air and slam back down, hitting up to 1,000 on the player.
In addition to the two normal special attacks, the demons are capable of using a third if you stand behind a rock for too long. This attack is similar to one used by Har'Lakk the Riftsplitter in that the demon will summon a number of flame portals around you that deal rapid 400s until you move away. Unlike the other two special attacks, the demon can use this an unlimited number of times.
90 Slayer is required to be assigned a Kal'gerion demon assignment by Kuradal or Morvran, but not to kill them.