Jayce leaps to the enemy's location and smashes his hammer on the ground. It deals physical damage to all enemies in the area and slows them for a couple of seconds.
Lightning Field / Hyper Charge
W
Cooldown: 10 seconds ∙ Cost: 40 mana ∙ Range: 285
Passive: Jayce restores mana every time he hits an enemy with an auto-attack.
Active: Jayce surrounds himself with an electric field for 4 seconds, dealing magic damage each second to all nearby enemies.
Jayce swings his hammer at a target enemy. This deals magic damage while pulling them to a location away from him in the direction of the target.
Mercury Cannon / Mercury Hammer
R
Cooldown: 6 seconds ∙ Cost: 0 mana ∙ Range: 600
Jayce transforms his Hammer into a Cannon and vice versa. On enabling his cannon, he gains ranged auto-attacks and causes his next auto-attack to reduce his target's armor and magic resistance by a certain percentage for 5 seconds.
Quick tips to play Jayce
Jayce will have the range advantage in most matchups. Look to abuse your range by poking the enemy consistently before looking for the all-in.
Focus on poking the enemy down with your Q before committing to a fight. Jayce is more of a poke champion rather than a 1v1 dueler.
Jayce is a mana hungry champion. Avoid using all of your mana in the early game trying to poke. Save enough mana for your E so you can disengage if the enemy tries to fight.