The correlation between xpm and kda is 0.88. The more xpm, the more kda, and vice versa. But some values are higher than expected, some are lower. Efficiency is a difference between the value of kda depending on xpm (blue dots) with respect to the expected value (red line).
| Efficiency | |
|---|---|
| Holy Locket | 0.6758 |
| Phylactery | 0.5193 |
| Refresher Orb | 0.5112 |
| Arcane Blink | 0.5015 |
| Guardian Greaves | 0.4762 |
| Octarine Core | 0.4650 |
| Boots Of Bearing | 0.4053 |
| Revenant'S Brooch | 0.3908 |
| Wind Waker | 0.3585 |
| Shiva'S Guard | 0.3462 |
| Helm Of The Overlord | 0.3247 |
| Kaya And Sange | 0.3148 |
| Yasha And Kaya | 0.3068 |
| Pavise | 0.2970 |
| Spirit Vessel | 0.2796 |
| Meteor Hammer | 0.2751 |
| Veil Of Discord | 0.2633 |
| Disperser | 0.2597 |
| Eye Of Skadi | 0.2289 |
| Scythe Of Vyse | 0.2211 |
| Gleipnir | 0.2124 |
| Rod Of Atos | 0.2031 |
| Linken'S Sphere | 0.1995 |
| Mekansm | 0.1974 |
| Boots Of Travel 2 | 0.1955 |
| Solar Crest | 0.1944 |
| Drum Of Endurance | 0.1871 |
| Swift Blink | 0.1646 |
| Overwhelming Blink | 0.1524 |
| Pipe Of Insight | 0.1336 |
| Radiance | 0.1250 |
| Vladmir'S Offering | 0.1141 |
| Aether Lens | 0.1107 |
| Force Staff | 0.1027 |
| Ethereal Blade | 0.0943 |
| Lotus Orb | 0.0847 |
| Heart Of Tarrasque | 0.0825 |
| Dagon (5) | 0.0724 |
| Aghanim'S Scepter | 0.0640 |
| Arcane Boots | 0.0632 |
| Butterfly | 0.0631 |
| Assault Cuirass | 0.0591 |
| Glimmer Cape | 0.0440 |
| Bloodthorn | 0.0369 |
| Boots Of Travel | 0.0279 |
| Hurricane Pike | 0.0265 |
| Magic Wand | 0.0219 |
| Harpoon | 0.0180 |
| Dagon (4) | 0.0160 |
| Witch Blade | 0.0152 |
| Eul'S Scepter Of Divinity | 0.0147 |
| Manta Style | 0.0126 |
| Bottle | 0.0038 |
| Nullifier | -0.0148 |
| Moon Shard | -0.0153 |
| Aeon Disk | -0.0291 |
| Soul Ring | -0.0373 |
| Dagon (3) | -0.0496 |
| Tranquil Boots | -0.0505 |
| Aghanim'S Shard | -0.0514 |
| Null Talisman | -0.0518 |
| Mjollnir | -0.0622 |
| Abyssal Blade | -0.0654 |
| Urn Of Shadows | -0.0687 |
| Orchid Malevolence | -0.0725 |
| Dagon (2) | -0.0810 |
| Daedalus | -0.0837 |
| Bracer | -0.0856 |
| Crimson Guard | -0.0861 |
| Aghanim'S Blessing | -0.1206 |
| Dagon | -0.1301 |
| Blink Dagger | -0.1377 |
| Medallion Of Courage | -0.1396 |
| Orb Of Corrosion | -0.1400 |
| Heaven'S Halberd | -0.1663 |
| Bloodstone | -0.1873 |
| Falcon Blade | -0.1878 |
| Satanic | -0.1961 |
| Phase Boots | -0.2031 |
| Diffusal Blade | -0.2125 |
| Eternal Shroud | -0.2285 |
| Monkey King Bar | -0.2453 |
| Sange And Yasha | -0.2464 |
| Desolator | -0.2615 |
| Helm Of The Dominator | -0.2650 |
| Power Treads | -0.2759 |
| Hand Of Midas | -0.2957 |
| Blade Mail | -0.3025 |
| Wraith Band | -0.3086 |
| Black King Bar | -0.3167 |
| Mage Slayer | -0.3302 |
| Vanguard | -0.3307 |
| Echo Sabre | -0.3394 |
| Silver Edge | -0.3537 |
| Skull Basher | -0.3759 |
| Maelstrom | -0.4111 |
| Shadow Blade | -0.4243 |
| Crystalys | -0.4280 |
| Dragon Lance | -0.4532 |
| Armlet Of Mordiggian | -0.4640 |
| Mask Of Madness | -0.5024 |
| Battle Fury | -0.6486 |