Dementor

Dementors are foul, dark and powerful creatures. They are some of the strongest F2P monster. The dementors is in the deep wilderness around 40 - 50. They are immortals and impossible to kill, unless you have the Patronus ring. Its recommended to be combat level 90 - 100+ before you try to kill them.

Strategy
When you want to kill a Dementor it's good to bring the best armour you can get. I suggest this:

F2P Armour
Head wear slot: Rune fullhelm, Green d' hide coif, Combat hood, Corrupt dragon medium helm.

Cape slot: Any cape.

Neck slot: Amulet of power.

Ammunition slot: Adamant or Rune arrows.

Weapon slot: Corrupt dragon longsword, Rune longsword, Maple longbow (sighted), Any magic staff.

Body slot: Rune platebody, Corrupt dragon chainbody, Green d' hide body, Combat robe top.

Shield slot: Rune berserker shield, Corrupt dragon sq shield.

Legwear slot: Rune platelegs, Corrupt dragon platelegs/skirt, Green d' hide legs, Combat robe bottom.

Hand slot: Rune gauntlets, Green d' hide vambraces.

Footwear slot: Does not matter.

Ring slot: Patronus ring (Needed).

Members should just wear the same or better.

The strategy is set on all melee and magic protection prayers. It will block the attacks until you prayer runs out. When they say: ''...Hungry...for.....SOULS! ''You must quickly use the patronus rings special. It'l hold them off. If you dont, they will hit up to 520 life points! Remember the ring only has 5 charges. If you follow all this and your skills are high, there should not be problems with them.

Drops
Unique drops

Soul bottle (rare)

100% Drops

Nothing

Armour and weapons

Rune 2h sword (uncommon)

Rune scimitar (common)

Dragon dagger (uncommon)

Dragon scimitar (very rare)

Dragon Halberd (extremely rare)

Dragon chainbody (very rare)

Black platebody (g)

Runes and ammo

Death rune (100)

Soul rune(m) (50)

Elemental runes (500)

Rune arrow (100)

Dragon arrow (25 - 100)

Adamant arrow (100)

Ores and bars

Steel bar (100) noted

Runite ore (1 - 3) noted

Mithril bar (20) noted

Other

Gems (uncommon)

Yew logs (200) noted