Abilities of Ekko
Spell skill priority is an important winning factor for Ekko. Understanding the abilities of Ekko in League of Legends is another. Below you can find all the relevant information on Ekko abilities. In order for item builds you should check the build for Ekko.
Passive: Z-Drive Resonance
Every third attack or damaging spell on the same target deals bonus magic damage, and grants Ekko a burst of speed if the target is a champion.
Timewinder
Ekko throws a temporal grenade that expands into a time-distortion field upon hitting an enemy champion, slowing and damaging anyone caught inside. After a delay, the grenade rewinds back to Ekko, dealing damage on its return.
Ekko throws a device dealing initialdamage magic damage. On hitting a champion or reaching the end of its range, it expands into a field that Slows enemies inside by e2%. After it expands, Ekko recalls it, dealing recalldamage magic damage.
Parallel Convergence
Ekko's basic attacks deal bonus magic damage to low health enemies. He can cast Parallel Convergence to split the timeline, creating an anomaly after a few seconds that slows enemies caught inside. If Ekko enters the anomaly, he gains shielding and stuns enemies by suspending them in time.
Passive: Ekko's Attacks against enemies below 30% Health deal missinghealthpercent missing Health magic damage.
Active: Ekko launches a chronosphere lasting 1.5 seconds after a delay that Slows enemies inside by e0%. If Ekko enters the sphere, he detonates it, Stunning for e2 seconds and gaining totalshield Shield.
Phase Dive
Ekko rolls evasively while charging up his Z-Drive. His next attack deals bonus damage and warps reality, teleporting him to his target.
Ekko dashes and empowers his next Attack to have bonus range, teleport him to his target, and deal an additional totaldamage magic damage.
Chronobreak
Ekko shatters his timeline, becoming untargetable and rewinding to a more favorable point in time. He returns to whenever he was a few seconds ago, and heals for a percentage of the damage received in that duration. Enemies near his arrival zone take massive damage.
Ekko turns back time, entering Stasis while teleporting to where he was 4 seconds ago and dealing totaldamage magic damage to nearby enemies. In addition, Ekko restores totalbaseheal Health, increased by percenthealampperpercentmissinghealth% for each 1% Health he lost in last 4 seconds.
FAQ on Ekko
What do you max first on Ekko?
Most Ekko pros max out 
Timewinder first.