艾克+寶石手套SE with crit → instant triple-ring. Long CD — pick your engage; vs shield comps, build shield-shred.
艾克+劍舞之心SEkko W passive deals % missing-HP damage — late, easily 30%. Blade Waltz triggers it every hit, same with Fan the Hammer and Ethereal Weapon. The hex core strength is W passive, not the triple-ring. Most champs grab Blade Waltz for invuln — Ekko grabs it for explosive damage.
艾克+虛空裂縫SVoid Rift deals magic damage, so it fits AP champs with high magic pen — % magic pen amplifies, and Pridestalker's ability damage procs it many times. Forge: magic pen > AP > MS.
艾克+旋風鎚SUse Fan the Hammer's extra bolts to proc Ekko's W passive (% magic damage to low-HP targets). Each bolt fully triggers it — sub-30% HP targets get nuked by one EA. The combo not only stacks triple-ring but multi-procs the execute.