Graves' shotgun has some unique properties. He must reload when he runs out of ammo. Attacks fire 4 bullets, which cannot pass through units. Non-champions struck by multiple bullets are knocked back.
1
End of the Line
Graves fires an explosive shell that detonates after 1.5 seconds, or 0.25 seconds if it strikes terrain.
2
Smoke Screen
Graves fires a smoke canister at the target area creating a cloud of smoke that reduces sight range. Enemies caught in the initial impact are dealt magic damage and have their movement speed reduced briefly.
3
Quickdraw
Graves dashes forward gaining an Armor boost for several seconds. If Graves dashes towards an enemy champion, gain two stacks of True Grit instead. Hitting enemies with basic attacks lowers the cooldown of this skill and refreshes the resistance boost.
Ult
Collateral Damage
Graves fires an explosive shell dealing heavy damage to the first champion it hits, and pushing Graves back from recoil. After hitting a champion or reaching the end of its range, the shell explodes dealing damage in a cone.
Ability descriptions from the official Wild Rift website.
This page is for League of Legends: Wild Rift (the mobile game), not League of Legends on PC. A Japanese version with guides and matchup notes is available: 日本語版.