Jayce can swap between melee and ranged weapons using Mercury Cannon / Mercury Hammer starting from level 1. Swapping weapons also swaps all his Abilities and grants him 30 Move Speed for 0.75 seconds.
By rank and level
—
CD
16s
Mana
40
Range
600
Damage60
No other values
Mercury Hammer: Jayce leaps to an enemy, dealing 60 physical damage to surrounding enemies and Slowing them by 35% for 2 seconds.
By rank and level
Damagex: Rank
Steady change: +50 per +1 Rank
Cooldownx: Rank
Steady change: −2 per +1 Rank
Slow (%)x: Rank
Steady change: +5 per +1 Rank
Mana costx: Rank
CD
10s
Mana
40
Range
285
Damage140
No other values
Mercury Hammer - Passive: Jayce's Hammer Attacks grant 15 Mana.
Mercury Hammer - Active: Jayce creates an electric aura dealing 140 magic damage over 4 seconds.
By rank and level
Damagex: Rank
Steady change: +60 per +1 Rank
Mana Restorex: Rank
Steady change: +2 per +1 Rank
Cooldownx: Rank
Mana costx: Rank
CD
20s
Mana
55
Range
240
Flat damage0
No other values
Hammer Form: Jayce swings his hammer, Knocking Back his target and dealing 0 plus 8% max Health magic damage.
By rank and level
Flat damagex: Rank
Max Health % (%)x: Rank
Steady change: +2.8 per +1 Rank
Cooldownx: Rank
Steady change: −2 per +1 Rank
Monster Damage Capx: Rank
Steady change: +100 per +1 Rank
Mana costx: Rank
CD
6s
Mana
—
Range
600
Ranged form resist shred20%
Damage25
Armor and magic resist5
Mercury Hammer: Jayce transforms his weapon into the Mercury Cannon, gaining Attack Range and new Abilities. Jayce's next Attack removes 20% Armor and Magic Resist for 5 seconds.
By rank and level
Ranged form resist shredx: Rank
Ranged form resist shredx: Level
Notable changes: +5 (+25%) at Level 6, +5 (+20%) at Level 11, +5 (+16.7%) at Level 16
Damagex: Rank
Damagex: Level
Notable changes: +35 (+140%) at Level 6, +35 (+58.3%) at Level 11, +35 (+36.8%) at Level 16
Armor and magic resistx: Rank
Armor and magic resistx: Level
Notable changes: +7 (+140%) at Level 6, +7 (+58.3%) at Level 11, +7 (+36.8%) at Level 16
Cooldownx: Rank
Base Stats
Base values at level 1 (no bonus stats) · charts start at 0 and show Lv1→18 growth
Health×4.1
590Lv1
Lv1 590 → Lv18 2443 · Per level +109
Biggest change: +140 (+6.1%) at Lv18
Mana×3
375Lv1
Lv1 375 → Lv18 1140 · Per level +45
Biggest change: +58 (+5.3%) at Lv18
Attack Damage×2.2
59Lv1
Lv1 59 → Lv18 131.3 · Per level +4.25
Biggest change: +5.4 (+4.3%) at Lv18
Attack Speed×1.5
0.658Lv1
Lv1 0.658 → Lv18 0.994 · Per level +3%
Biggest change: +0.025 (+2.6%) at Lv18
Armor×4.9
22Lv1
Lv1 22 → Lv18 107 · Per level +5
Biggest change: +6.4 (+6.4%) at Lv18
Magic Resist×1.7
30Lv1
Lv1 30 → Lv18 52.1 · Per level +1.3
Biggest change: +1.7 (+3.3%) at Lv18
Health Regen (5s)×2.7
6Lv1
Lv1 6 → Lv18 16.2 · Per level +0.6
Biggest change: +0.8 (+5%) at Lv18
Mana Regen (5s)×3.3
6Lv1
Lv1 6 → Lv18 19.6 · Per level +0.8
Biggest change: +1 (+5.5%) at Lv18
Fixed at every levelMove Speed335Attack Range125AS ratio0.658
Scaling profile
Bonus AD
24%
Attack Speed
23%
AD
18%
Critical
18%
AP
14%
Mana
2%
Ability coefficients weighted by typical build stat amounts (derived from data, not match statistics).
Relative score from how well the item's stats match the champion's ability coefficients (game data, not match statistics). Item passives are not modeled yet.