OSRS Drop Calculator › Mystic robe bottom (dark)

Best way to farm Mystic robe bottom (dark)

All 2 monsters that drop Mystic robe bottom (dark), ranked by realistic quantity per hour — not just drop rate. Change the seconds-per-kill for any monster to match your own speed. 2 other sources aren’t ranked; see why below.

Drop data: Mystic robe bottom (dark) on the OSRS Wiki

Currently fastest method
Aberrant spectre
0.3 / hr
Monster Drops (rarity · quantity) Avg/kill Sec/kill Kills/hr Qty/hr
Aberrant spectre
Combat lvl 96 · Slayer 60
1/512 · 1
 1 per 512 kills 23 157 0.3
Deviant spectre
Combat lvl 169 · Slayer 60
1/512 · 1
 1 per 512 kills 38 95 0.2

Other sources (not ranked)

These also drop it but aren’t included in the ranking above. They’re all superior slayer monsters: they only appear randomly (~1 in 200 kills) while you’re on a slayer task.

Monster Drops (rarity · quantity) Avg/kill
Abhorrent spectre
Combat lvl 253 · Slayer 60
1/512 · 1 (3 rolls)
 1 per 171 kills
Repugnant spectre
Combat lvl 335 · Slayer 60
1/512 · 1
 1 per 512 kills
How this is calculated: items/hr = (3600 ÷ seconds per kill) × average items per kill. Each monster's drop lines are listed as the wiki shows them (rarity · quantity); the average adds them all up, each as 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 community-verified drop tables. Seconds-per-kill is an editable estimate based on each monster's hitpoints and defence — your real speed depends on your stats and gear, so adjust it and your edits are remembered on this device. Rates marked ~ are approximate on the wiki.

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.