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Prediction Model

Grey Talon Buff/Nerf Watch

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 Grey Talon-only so the predictors can be reviewed before expanding to every hero.

Best read: this is now a three-stage experiment. It first asks whether Grey Talon is likely to change, then which broad mechanic would be selected, then the direction of that selected mechanic. Later stages are conditional and must not be read as standalone certainty.

Stage 1: Will Grey Talon receive any balance change in the next patch?
Stage 2: If Grey Talon changes, which mechanic family is most likely to be selected?
Stage 3: If that family is selected, does its patch direction look like buff, nerf, or mixed/rework?
Future learning: Weekly snapshots preserve hero stats and ability values over time. They are enabled as model features only after changed and unchanged patches both have adequate coverage.

Three-Stage Next-Patch Forecast

1

Will Grey Talon change?

23.9%

Estimated chance of any Grey Talon balance change. No-change estimate: 76.1%.

Disclaimer: Experimental. This is based on one hero's patch history and has not been proven accurate — Stage 1 and Stage 2 don't yet beat a simple "no change" guess on holdout data. Treat every number on this page as a rough signal, not a confirmed forecast.

Stages 2 and 3: target and direction if Grey Talon changes

Mechanic	Selected if changed	Direction	Buff if selected	Nerf if selected	Mixed/rework if selected	Combined priority
Guided Owl	13.0%	Buff	48.2%	16.4%	35.4%	3.1%
Charged Shot	13.0%	Buff	43.5%	17.3%	39.2%	3.1%
Spirit Snare	8.9%	Nerf	10.8%	48.1%	41.1%	2.1%
Spirit	8.1%	Nerf	10.8%	48.1%	41.1%	1.9%
Weapon	7.3%	Mixed Or Rework	29.2%	23.9%	46.9%	1.7%
Vitality	1.2%	Buff	41.6%	20.7%	37.7%	0.3%
Rain Of Arrows	1.1%	Buff	42.5%	16.7%	40.8%	0.3%

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.

Validation and Data Readiness

Every stage uses older patches for training and newer patches for testing. The current patch calendar contains 167 update dates through 2026-11-05.

Stage	Test rows	Balanced accuracy	Macro F1
Stage 1 - hero changedWhether Grey Talon receives any balance change.	34	50.0%	0.477
Stage 2 - mechanic selectedWhich mechanic family is selected if Grey Talon changes.	238	50.0%	0.493
Stage 3 - conditional directionBuff, nerf, or mixed/rework after a mechanic is selected.	2	0.0%	0.000

Performance feature gate: withheld. Historical pre-patch win-rate coverage is 17.4%; the required coverage is 80.0%. Performance features are withheld because missingness is too sparse or too strongly associated with whether Grey Talon changed.

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.

Grey Talon Patch Changes

18 Grey Talon patch-change rows are included from the recent patch window.

Patch	Predictor	Direction	Before	After	Notes
2026-10-30	charged_shot_t2ability:charged_shot	Buff			Charged Shot - T2 now also has -2s Charge Delay
2026-10-30	charged_shot_t3ability:charged_shot	Nerf			Charged Shot - T3 no longer has -3s Charge Delay
2026-10-30	charged_shot_t3ability:charged_shot	Buff			Charged Shot - T3 now also lets the shot bounce once off a wall (can't hit a target more than once)
2026-10-30	guided_owlability:guided_owl	Rework			Guided Owl - Now launches in the exact direction you're aiming, including steep downward angles (previously always launched at least 45° upward)
2026-06-30	guided_owl_permanent_spirit_bonusability:guided_owl	Nerf	10	8	Guided Owl permanent spirit bonus reduced from 10 to 8
2026-06-30	rain_of_arrows_cooldownability:rain_of_arrows	Buff	23s	25s	Rain of Arrows cooldown increased from 23s to 25s
2026-06-12	rain_of_arrows_cooldownability:rain_of_arrows	Buff	22s	23s	Rain of Arrows cooldown increased from 22s to 23s
2026-06-12	rain_of_arrows_t2ability:rain_of_arrows	Nerf	-13s Cooldown	-12s	Rain of Arrows T2 reduced from -13s Cooldown to -12s
2026-06-12	gun_cycle_timevitality	Buff	0.5775	0	Gun cycle time increased from 0.5775 to 0.6 (~4% DPS nerf)
2026-06-12	bullet_damage_growthweapon	Nerf	+1.0	+0	Bullet damage growth reduced from +1.0 to +0.85
2026-05-22	rain_of_arrows_cast_delayability:rain_of_arrows	Nerf	0.5s	0	Rain of Arrows cast delay reduced from 0.5s to 0.2s
2026-05-22	rain_of_arrows_cooldownability:rain_of_arrows	Nerf	30s	22s	Rain of Arrows cooldown reduced from 30s to 22s
2026-05-22	rain_of_arrows_durationability:rain_of_arrows	Nerf	7s	4s	Rain of Arrows duration reduced from 7s to 4s
2026-05-22	rain_of_arrows_moving_ability_in_air_improvedability:rain_of_arrows	Buff			Rain of Arrows moving ability in air improved
2026-05-22	rain_of_arrows_t1ability:rain_of_arrows	Rework	"-14s Cooldown"	"+3 Weapon Damage and +30% Slow for 1	Rain of Arrows T1 changed from "-14s Cooldown" to "+3 Weapon Damage and +30% Slow for 1.5s"
2026-05-22	rain_of_arrows_t2ability:rain_of_arrows	Rework	"+5 Weapon Damage and +40% Slow for 1.5s"	"-13s Cooldown" (Total CD from 16s to 9s)	Rain of Arrows T2 changed from "+5 Weapon Damage and +40% Slow for 1.5s" to "-13s Cooldown" (Total CD from 16s to 9s)
2026-05-22	rain_of_arrows_weapon_damage_bonusability:rain_of_arrows	Nerf	+4	+3	Rain of Arrows Weapon Damage bonus reduced from +4 to +3
2026-05-22	rain_of_arrow_stamina_distancevitality	Rework	being -9%	+25%	Rain of Arrow stamina distance changed from being -9% to +25%