This page is the hero-side version of the item prediction screen. The target is whether a hero looks more likely to be buffed, nerfed, or left alone in a future patch. This first page is Mo & Krill-only so the predictors can be reviewed before expanding to every hero.
Estimated chance of any Mo & Krill balance change. No-change estimate: 70.9%.
| Mechanic | Selected if changed | Direction | Buff if selected | Nerf if selected | Mixed/rework if selected | Combined priority |
|---|---|---|---|---|---|---|
| Sand Blast | 25.9% | Buff | 52.4% | 30.3% | 17.3% | 7.5% |
| Burrow | 24.8% | Nerf | 29.2% | 55.0% | 15.7% | 7.2% |
| Combo | 21.6% | Buff | 52.1% | 29.4% | 18.6% | 6.3% |
| Scorn | 7.8% | Buff | 66.5% | 22.6% | 10.8% | 2.3% |
| Weapon | 4.2% | Mixed Or Rework | 20.4% | 30.3% | 49.3% | 1.2% |
| Spirit | 3.9% | Mixed Or Rework | 20.4% | 30.3% | 49.3% | 1.1% |
| Vitality | 2.9% | Buff | 38.2% | 37.6% | 24.2% | 0.8% |
Combined priority multiplies Stage 1 by Stage 2 to help sort the watchlist. It is not a calibrated probability that the named mechanic will change.
Every stage uses older patches for training and newer patches for testing. The current patch calendar contains 147 update dates through 2026-08-02.
| Stage | Test rows | Balanced accuracy | Macro F1 |
|---|---|---|---|
| Stage 1 - hero changedWhether Mo & Krill receives any balance change. | 30 | 50.0% | 0.455 |
| Stage 2 - mechanic selectedWhich mechanic family is selected if Mo & Krill changes. | 210 | 50.0% | 0.487 |
| Stage 3 - conditional directionBuff, nerf, or mixed/rework after a mechanic is selected. | 4 | 33.3% | 0.222 |
The weekly collector now stores all hero performance, base stats, and ability properties without overwriting prior snapshots. Once enough unchanged and changed patches have comparable coverage, performance and ability-strength features can enter training without leaking the answer.
44 Mo & Krill patch-change rows are included from the recent patch window.
| Patch | Predictor | Direction | Before | After | Notes |
|---|---|---|---|---|---|
| 2026-07-28 | burrow_cooldownability:burrow | Nerf | Burrow cooldown no longer starts after the conclusion of the ability, now starts immediately | ||
| 2026-07-28 | comboability:combo | Rework | Combo now lets you cast items while using it | ||
| 2026-06-30 | combo_bonus_max_health_per_killability:combo | Buff | 30+1/boon | 40+2/boon | Combo bonus max health per kill increased from 30+1/boon to 40+2/boon |
| 2026-06-30 | sand_blast_t2_slowability:sand_blast | Buff | -25% | -30% | Sand Blast T2 slow increased from -25% to -30% |
| 2026-06-30 | sand_blast_t3ability:sand_blast | Buff | -20s Cooldown | -25s | Sand Blast T3 increased from -20s Cooldown to -25s |
| 2026-05-22 | getting_hit_with_a_meleeability:burrow | Nerf | Getting hit with a melee no longer knocks you up when you are burrowed | ||
| 2026-05-22 | sand_blast_t3ability:sand_blast | Buff | +1s Duration | +1 | Sand Blast T3 increased from +1s Duration to +1.5s |
| 2026-04-30 | burrow_move_speedability:burrow | Buff | +4 | +5 | Burrow move speed increased from +4 to +5 |
| 2026-03-06 | burrowability:burrow | Rework | Burrow now lets you enter the tunnels | ||
| 2026-03-06 | burrow_cooldownability:burrow | Buff | 37s | 40s | Burrow cooldown increased from 37s to 40s |
| 2026-03-06 | burrow_t1ability:burrow | Rework | "+3s Duration" | "+50 Spin DPS" | Burrow T1 changed from "+3s Duration" to "+50 Spin DPS" |
| 2026-03-06 | burrow_t2ability:burrow | Rework | "+68 Spin DPS and +2 Radius" | "+2 Spin Radius and +4s Burrow Time" | Burrow T2 changed from "+68 Spin DPS and +2 Radius" to "+2 Spin Radius and +4s Burrow Time" |
| 2026-03-06 | burrow_t3ability:burrow | Buff | +2 m/s Move Speed | +4 | Burrow T3 increased from +2 m/s Move Speed to +4 |
| 2026-03-06 | burrow_t3ability:burrow | Buff | -19s Cooldown | -20s | Burrow T3 increased from -19s Cooldown to -20s |
| 2026-03-06 | combo_cooldownability:combo | Nerf | 150s | 140s | Combo cooldown reduced from 150s to 140s |
| 2026-03-06 | combo_cooldownability:combo | Buff | 90s | 150s | Combo cooldown increased from 90s to 150s |
| 2026-03-06 | combo_cooldownability:combo | Nerf | 140s | 130s | Combo cooldown reduced from 140s to 130s |
| 2026-03-06 | combo_dpsability:combo | Nerf | 45 | 40 | Combo DPS reduced from 45 to 40 |
| 2026-03-06 | combo_dpsability:combo | Buff | 35 | 60 | Combo DPS increased from 35 to 60 |
| 2026-03-06 | combo_dpsability:combo | Nerf | 60 | 45 | Combo DPS reduced from 60 to 45 |
| 2026-03-06 | combo_dps_spirit_scalingability:combo | Nerf | 1.2 | 0 | Combo DPS spirit scaling reduced from 1.2 to 0.6 |
| 2026-03-06 | combo_health_rescaled_from_50_to_30_1_boon_not_retroactiveability:combo | Rework | 50 | 30 + 1/Boon (not retroactive) | Combo health rescaled from 50 to 30 + 1/Boon (not retroactive) |
| 2026-03-06 | combo_rangeability:combo | Nerf | 4.8m | 4m | Combo range reduced from 4.8m to 4m |
| 2026-03-06 | combo_t1ability:combo | Rework | Combo T1 changed "+30% Bullet Resist During Combo" to "+100% Lifesteal" | ||
| 2026-03-06 | combo_t2ability:combo | Rework | "+0.7s Duration" | "+60 DPS and +50% Bullet Resist" | Combo T2 changed from "+0.7s Duration" to "+60 DPS and +50% Bullet Resist" |
| 2026-03-06 | combo_t2ability:combo | Rework | "+60 DPS and +50% Bullet Resist" | "-35s Cooldown and +50% Bullet Resist" | Combo T2 changed from "+60 DPS and +50% Bullet Resist" to "-35s Cooldown and +50% Bullet Resist" |
| 2026-03-06 | combo_t3ability:combo | Buff | Combo T3 now also increases spirit scaling +0.4 | ||
| 2026-03-06 | combo_t3ability:combo | Rework | "+32 DPS and 80% Lifesteal" | "+0 | Combo T3 changed from "+32 DPS and 80% Lifesteal" to "+0.7s Duration and -60s Cooldown" |
| 2026-03-06 | combo_t3ability:combo | Rework | +0.7s Duration and -60s Cooldown" | "+0 | Combo T3 changed from +0.7s Duration and -60s Cooldown" to "+0.7s Duration and +60 Damage" |
| 2026-03-06 | combo_t3_dpsability:combo | Nerf | +60 | +50 | Combo T3 DPS reduced from +60 to +50 |
| 2026-03-06 | sand_blast_cooldownability:sand_blast | Nerf | 42s | 40s | Sand Blast cooldown reduced from 42s to 40s |
| 2026-03-06 | sand_blast_durationability:sand_blast | Nerf | 3s | 2 | Sand Blast duration reduced from 3s to 2.5s |
| 2026-03-06 | sand_blast_rangeability:sand_blast | Nerf | 35m | 25m | Sand Blast range reduced from 35m to 25m |
| 2026-03-06 | sand_blast_t1ability:sand_blast | Rework | "+1s" | "+50 Damage and +5m Range" | Sand Blast T1 changed from "+1s" to "+50 Damage and +5m Range" |
| 2026-03-06 | sand_blast_t2ability:sand_blast | Rework | "-23s Cooldown" | "Slows targets Move Speed and Dash Distance by -25%" | Sand Blast T2 changed from "-23s Cooldown" to "Slows targets Move Speed and Dash Distance by -25%" |
| 2026-03-06 | sand_blast_t3ability:sand_blast | Rework | "Slows targets Move Speed and Dash Distance by -40%" | "+1s Duration and -20s Cooldown" | Sand Blast T3 changed from "Slows targets Move Speed and Dash Distance by -40%" to "+1s Duration and -20s Cooldown" |
| 2026-03-06 | scorn_cooldownability:scorn | Buff | 12.5s | 13s | Scorn cooldown increased from 12.5s to 13s |
| 2026-03-06 | scorn_damageability:scorn | Nerf | 56 | 50 | Scorn damage reduced from 56 to 50 |
| 2026-03-06 | scorn_heal_vs_non_heroesability:scorn | Nerf | 0.5x | 0 | Scorn heal vs non-heroes reduced from 0.5x to 0.35x |
| 2026-03-06 | scorn_radiusability:scorn | Nerf | 10m | 9m | Scorn radius reduced from 10m to 9m |
| 2026-03-06 | scorn_spirit_scalingability:scorn | Buff | 0.42 | 0 | Scorn spirit scaling increased from 0.42 to 0.75 |
| 2026-03-06 | scorn_t1ability:scorn | Rework | "-3.75s Cooldown" | "+35 Damage" | Scorn T1 changed from "-3.75s Cooldown" to "+35 Damage" |
| 2026-03-06 | scorn_t2ability:scorn | Rework | "+21 Damage" | "-5s Cooldown and +1m Radius" | Scorn T2 changed from "+21 Damage" to "-5s Cooldown and +1m Radius" |
| 2025-11-21 | health_regenvitality | Nerf | 3 | 1 | Health Regen reduced from 3 to 1 |