OSRS Drop Calculator › Contract of Glyphic Attenuation

Contract of Glyphic Attenuation

Best way to farm Contract of Glyphic Attenuation

All 4 monsters that drop Contract of Glyphic Attenuation, ranked by realistic quantity per hour — not just drop rate. Change the seconds-per-kill for any monster to match your own speed.

Drop data: Contract of Glyphic Attenuation on the OSRS Wiki

Currently fastest method
Yama (Contract)
6.3 / hr
Monster Drops (rarity · quantity) Avg/kill Sec/kill Kills/hr Qty/hr
Combat lvl 1238
Always · 1
 1 573 6 6.3
Combat lvl 92
1/81 · 1
 0.012 22 164 2
Combat lvl 172
1/53 · 1
 0.019 39 92 1.7
Combat lvl 82
1/123 · 1
 1 per 123 kills 20 180 1.5

How this is calculated

Items per hour = kills per hour × average items per kill.

Average items per kill adds up every drop line as the wiki shows it (rarity × average quantity × rolls), so a guaranteed drop plus a rarer bonus drop both count. Drop rates and quantities come from the OSRS Wiki's drop tables; rates marked ~ are approximate on the wiki. "via" means the item comes inside another drop, like red spiders' eggs in Sarachnis's giant egg sac.

Kill times are estimates, worked out the same way for every monster from its hitpoints and defence. Add your RuneScape name in Preferences and they're worked out from your own combat levels instead. We can't see your gear or include boss mechanics, so expect individual times to be off; what matters is how the monsters compare. You can type your own time for any monster: it's remembered on this device for every page (↺ goes back to the default), and shared anonymously to help improve the estimates (privacy).

Achievement diaries that improve a drop rate or quantity can be ticked in Preferences.

Something wrong on this page?

Drop rates come from the OSRS Wiki and kill times are estimates, so mistakes happen. Tell us what's off and it'll be looked at.