Sinister Offering

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Sinister Offering
Released16 June 2021 (Update)
MembersYes
LevelMagic 92
SpellbookArceuus
TypeUtility
Experience180
Runes 1Blood 1Wrath
Cooldown9 ticks
QuestA Kingdom Divided
DescriptionConverts bones into prayer points and experience
Animation
Sound effect

Sinister Offering is a spell within the Arceuus spellbook that requires level 92 Magic and the completion of A Kingdom Divided to be cast. When cast, the spell instantly offers up to three bones in the player's inventory, granting 300% the normal experience for burying them. Players must have level 70 Prayer in order to offer superior dragon bones via the spell. Players may only cast offering spells once every 5.4 seconds.

The spell also restores one prayer point for each set of bones converted; for Ourg, dagannoth, hydra, and superior dragon bones, two prayer points are restored instead.

The spell can be cast without runes at the Fountain of Rune.

Spell cost
InputCost
1 1 584

Prayer experience

[edit | edit source]
Prayer Bones XP Spell XP[1] Purchased Bones Spell Only (Excluding Bone Cost) XP/Hr[2]
GP/XP GP/XP
13.5 40.5 −17.01 −14.42 24,300
15 45 −34.84 −12.98 27,000
15.9 47.7 −38.03 −12.24 28,620
45 135 −11.93 −4.33 81,000
45 135 −19.30 −4.33 81,000
63 189 −8.19 −3.09 113,400
67.5 202.5 −12.37 −2.88 121,500
75 225 −94.74 −2.60 135,000
90 270 −8.84 −2.16 162,000
150 450 −10.32 −1.30 270,000
180 540 −10.75 −1.08 324,000
216 648 −11.63 −0.90 388,800
216 648 −11.48 −0.90 388,800
240 720 −15.62 −0.81 432,000
252 756 −17.46 −0.77 453,600
255 765 −19.87 −0.76 459,000
288 864 −26.50 −0.68 518,400
300 900 −20.76 −0.65 540,000
330 990 −21.86 −0.59 594,000
375 1125 −32.61 −0.52 675,000
420 1260 −119.24 −0.46 756,000
450 1350 −51.18 −0.43 810,000
  1. ^ Assumes three bones per cast
  2. ^ Assuming 600 casts per hour, gaining Magic 108,000 per hour.

Changes

[edit | edit source]
Date Changes
15 November 2023
(Update)

The spell no longer consumes long and curved bones.

4 August 2021
(Update)

The spell can now be performed without interrupting the player's actions.

30 June 2021
(Update)

Offering spells are now cast instantly, and have a cooldown of 9 game ticks (5.4 seconds).