Abilities of Jarvan IV
Spell skill priority is an important winning factor for Jarvan IV. Understanding the abilities of Jarvan IV in League of Legends is another. Below you can find all the relevant information on Jarvan IV abilities. In order for item builds you should check the build for Jarvan IV.
Passive: Martial Cadence
Jarvan's first basic attack on an enemy deals bonus physical damage based on their current Health. This effect cannot occur again on the same enemy for a few seconds.
Dragon Strike
Jarvan IV extends his lance, dealing physical damage and lowering the Armor of enemies in its path. Additionally, this will pull Jarvan to his Demacian Standard, knocking up enemies in his path.
Jarvan extends his lance, dealing totaldamage physical damage and removing e2% Armor for e3 seconds.
If the lance connects with Demacian Standard, Jarvan will pull himself to it, Knocking Up those in his path for 0.75 seconds.
Golden Aegis
Jarvan IV calls upon the ancient kings of Demacia to shield him from harm and slow surrounding enemies.
Jarvan summons an aegis, Slowing nearby enemies by e2% for e5 seconds and granting him a baseshield Shield, increased by bonusshield for each enemy champion hit.
Demacian Standard
Jarvan IV carries the pride of Demacia, passively granting him bonus Attack Speed. Activating Demacian Standard allows Jarvan IV to place a Demacian flag that deals magic damage on impact and grants Attack Speed to nearby allied champions.
Passive: Jarvan gains permanentattackspeed*100% Attack Speed.
Active: Jarvan throws a standard into the ground, dealing totaldamage magic damage and granting allies near the standard e3% Attack Speed for e4 seconds.
Cataclysm
Jarvan IV heroically leaps into battle at a target with such force that he terraforms the surrounding area to create an arena around them. Nearby enemies are damaged at the moment of impact.
Jarvan heroically leaps to an enemy Champion, dealing damagecalc physical damage to them and surrounding enemies and creating an arena of impassable terrain around them for wallduration seconds.
Jarvan can Recast to collapse the terrain.
FAQ on Jarvan IV
What do you max first on Jarvan IV?
Most Jarvan IV pros max out 
Dragon Strike first.