Jayce

Innate: Whenever Jayce switches between Transform Mercury Hammer and Transform Mercury Cannon, he gains 30 bonus movement speed for 1.25 seconds.

Active: Jayce dash to the target enemy's location and smashes the ground, dealing physical damage to nearby enemies and slow them for 2 seconds.

To the Skies! deals 50% damage against minions.

Lightning Field can be cast during the dash.

Passive: Jayce's basic attacks on-hit restore mana.

Active: Jayce emits an electric aura lasting 4 seconds that deals magic damage every second to nearby enemies, reduced to 70% damage against monsters.

Active: Jayce swings his hammer at the target enemy, which hits them and surrounding enemies to airborne 2 them all back and deal magic damage.

The damage is capped against monsters.

Active: Jayce transforms into Cannon Stance, receiving access to its abilities and becoming ranged with 500 attack range. His next basic attack in Cannon Stance is empowered to deal 13 to 55 for 15% (+ 10% bonus AD) bonus magic damage and reduce the target's armor and magic resistance by % for 5 seconds.

Jayce begins the game with Transform but cannot increase its rank. Instead, his basic abilities each have 5 ranks.