The Defender of Tomorrow

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"Trust me: if we're smart, Piltover can stand strong against any threat. Hey, I'm living proof." - Jayce

Armed with wit, charm, and his signature transforming hammer, Jayce lives to protect his native Piltover. Long before his nation called him a hero, however, he was a promising young inventor. When Piltover commissioned him to study a rare arcane crystal, Jayce discovered it could be used as a vast energy source. Eager to make a name for himself, he began developing a device to harness its power. Word of the crystal's potential reached beyond the borders of Piltover. Viktor, the machine-augmented scientist from Zaun, brought Jayce an offer - together, they could use the crystal to advance his 'glorious evolution', a vision of humanity fused with technology. Jayce refused, but the Zaunite had no intention of leaving empty handed. He effortlessly blasted Jayce aside and seized the crystal, incinerating the lab's meager security force as he left for Zaun. Jayce implored the Piltover government to respond, but the officials refused to support an act of aggression. He decided to act alone, realizing that if no one struck back, Piltover would never be safe.

Jayce returned to the lab to prepare for his attack. After intense research, development, and hands-on testing, he emerged with his crowning achievement - the Mercury Hammer. Weapon in hand, Jayce marched to Zaun and began his one-man assault. Viktor's acolytes rushed to stop him, but Jayce smashed them aside, fighting his way into the heart of the lab. Inside, Jayce saw the horrifying brilliance of Viktor's creations, all powered by the energy of the arcane crystal. He realized that his only option was to destroy the power source, but Viktor stood in his way. Though their clash left both scientists heavily wounded, Jayce managed a desperate strike at the crystal. He shattered it and escaped as Viktor's machines erupted in flames. When he returned home, exhausted but victorious, the citizens of Piltover hailed Jayce as a hero. He reveled in the adoration, but knew that his actions had drawn the attention of dangerous enemies. Now devoted to the defense of his people, Jayce is Piltover's best hope for a bright future.

"Trust me: if we're smart, Piltover can stand strong against any threat. Hey, I'm living proof." - Jayce

Armed with wit, charm, and his signature transforming hammer, Jayce lives to protect his native Piltover. He rose to prominence as an inventor, one whose magnetic personality and innovative creations brightened the lives of his nation's people. However, his technological marvels also attracted the attention of Piltover's enemies. Viktor, the machine-augmented scientist from Zaun, staged a deadly raid on Jayce's laboratory, barely impeded by the lab's meager security force. Viktor stole designs for an arcane power converter. Jayce feared that Viktor would create weapons of devastating power with the stolen technology. He implored the Piltover government to respond, but the officials were unwilling to support an act of aggression. Refusing to allow his own inventions to threaten the people of Piltover, Jayce decided to strike back against Viktor himself.

Jayce returned to his laboratory and began making preparations for his one-man attack. After an intense period of research, development, and hands-on testing, he emerged. He had created an array of powerful armaments, including his crowning achievement - the versatile, transforming Mercury Hammer. Armed and ready, Jayce began his assault, easily smashing aside Viktor's acolytes as they rushed to stop him. Jayce fought his way into the heart of the lab and confronted Viktor, forcing the Zaunite to flee. After destroying Viktor's prototype weapon, Jayce returned to Piltover where he was hailed as a hero. He reveled in the adoration, but he knew that his actions had provoked the nation's enemies. Now devoted to the defense of his people, Jayce is Piltover's best hope for a bright future.

Patch History

V7.12

• Forsaken Jayce
  • Bug Fix: Fixed a bug where his recall audio desynced from the animation when enemies lost and then regained vision of him during the channel.
• Jayce Brighthammer
  • Acceleration Gate
    • Bug Fix: Now correctly plays the electric buzz SFX for the spawning and despawning of his Acceleration Gate.

V7.9

• Stats
  • Magic resistance growth increased to 0.5 from 0.

V7.3

• To the Skies!
  • Base damage reduced to 35 / 70 / 105 / 140 / 175 / 210 from 40 / 80 / 120 / 160 / 200 / 240.
• Thundering Blow
  • Mana cost increased to 55 from 40.
• Transform Mercury Hammer
  • AD ratio reduced to 25% bonus AD from 40% bonus AD.

V6.22

• General
  • Changed Jayce walking animation while in Hammer stance.

V6.17

• Thundering Blow
  • Mana cost reduced to 40 at all ranks from 40 / 50 / 60 / 70 / 80 / 90.
• Transform Mercury Cannon / Transform Mercury Hammer
  • Hammer Stance bonus damage ratio changed to 40% bonus AD from 40% AP.
  • Bug Fix: Fixed a bug where Jayce could be locked out of basic attacking for a short duration upon swapping to Mercury Hammer.

V6.6

• To the Skies!
  • Mana cost reduced to 40 at all ranks from 40 / 45 / 50 / 55 / 60 / 65.
  • Base damage increased to 40 / 80 / 120 / 160 / 200 / 240 from 30 / 70 / 110 / 150 / 190 / 230.
  • AD ratio increased to 120% bonus AD from 100% bonus AD.

V6.1

• Transform Mercury Hammer
  • Bug Fix: Bonus magic damage upon transforming was being consumed against structures without dealing damage if Hyper Charge was active.

V5.22

• Stats
  • Base mana increased to 357.2 from 307.2.
  • Mana growth reduced to 37 from 40.

V5.13

• Transform Mercury Cannon / Transform Mercury Hammer
  • Bug Fix: Fixed a bug where the ability was improving at levels 5 / 10 / 15 instead of the intended 6 / 11 / 16.

V5.11

• General
  • Removed: Transform Mercury Cannon / Transform Mercury Hammer ranks.
  • New Effect: Transform Mercury Cannon / Transform Mercury Hammer automatically 'rank up' at levels 6 / 11 / 16.
    • 'Rank up' values unchanged.
  • New Effect: Each of Jayce's basic abilities have 6 ranks.
• To the Skies!
  • Base damage changed to 30 / 70 / 110 / 150 / 190 / 230 from 20 / 65 / 110 / 155 / 200.
• Lightning Field
  • Base damage changed to 100 / 160 / 220 / 280 / 340 / 400 from 100 / 170 / 240 / 310 / 380.
• Thundering Blow
  • Base damage changed to 8 / 10.4 / 12.8 / 15.2 / 17.6 / 20% of target's maximum health from 8 / 11 / 14 / 17 / 20.
  • Cooldown changed to 15 / 14 / 13 / 12 / 11 / 10 seconds from 14 / 13 / 12 / 11 / 10.
• Shock Blast
  • Base damage changed to 70 / 120 / 170 / 220 / 270 / 320 from 60 / 115 / 170 / 225 / 280.
• Hyper Charge
  • Damage modifier changed to 70 / 78 / 86 / 94 / 102 / 110% from 70 / 80 / 90 / 100 / 110.
  • Cooldown changed to 13 / 11.4 / 9.8 / 8.2 / 6.6 / 4 seconds from 13 / 11 / 9 / 7 / 5.

V5.1

• Hyper Charge
  • Damage modifier reduced to 70 / 80 / 90 / 100 / 110% from 70 / 85 / 100 / 115 / 130%.

V4.21

• Hyper Charge
  • Cooldown reduced to 13 / 11 / 9 / 7 / 5 seconds from 14 / 12 / 10 / 8 / 6.
  • Cooldown now begins after the attacks have been used, rather than on activation.

V4.5

• Stats
  • Base armor increased to 16.5 from 12.5.

V3.9

• General
  • Switching stances no longer counts as an activation for the purposes of item effects (Mana Charge, Spellblade).
• Shock Blast
  • Base projectile speed increased to 1450 from 1350.
    • Accelerated projectile speed unchanged
• Acceleration Gate
  • Cooldown increased to 16 seconds at all ranks from 14 / 13 / 12 / 11 / 10.

V1.0.0.152

• Stats
  • Base movement speed increased to 335 from 310.

V1.0.0.150

• Thundering Blow
  • Removed: Base damage.
  • Bug Fix: Stun no longer lasts beyond the knockback duration.
• Acceleration Gate
  • Mana cost increased to 50 from 30.

V1.0.0.147b

• Thundering Blow
  • Mana cost increased to 40 / 50 / 60 / 70 / 80 from 40 at all ranks.

V1.0.0.145

• General
  • Improved responsivenesss of basic attacks, primarily during Hammer stance.
  • Bug Fix: First basic attack in Cannon stance being unresponsive.

V1.0.0.142 added

• Hextech Capacitor (Innate)
  • Jayce gains a quick burst of movement speed and ignores unit collision each time Transform is cast.
• Hammer Stance
  • To the Skies! (Q)
    • Jayce leaps to an enemy dealing physical damage and slowing enemies.
  • Lightning Field (W)
    • Passive: Jayce restores mana each time he strikes with the Mercury Hammer.
    • Active: Jayce creates a field of lightning damaging nearby enemies for several seconds.
  • Thundering Blow (E)
    • Jayce deals magic damage to an enemy based on their maximum health and knocks them back a short distance.
  • Transform: Mercury Cannon (Ultimate)
    • Transforms the Mercury Hammer into the Mercury Cannon gaining new abilities and increased range. The first attack in this form reduces the target's armor and magic resist.
• Cannon Stance
  • Shock Blast (Q)
  • Jayce fires an orb of electricity that detonates upon hitting an enemy (or reaching the end of its path) dealing physical damage to all enemies in the area of the explosion.
  • Hyper Charge (W)
    • Jayce gains a burst of energy, increasing attack speed to maximum for 3 attacks.
  • Acceleration Gate (E)
    • Jayce deploys an Acceleration Gate increasing the movement speed of all allies who pass through it. If Shock Blast is fired through the gate the missile speed, range, and damage will increase.
  • Transform: Mercury Hammer (Ultimate)
    • Transforms the Mercury Cannon into the Mercury Hammer gaining new abilities and increasing armor and magic resist. The first attack in this form deals additional magic damage.