Best summoner spells for Yena are: Flicker, Execute.
Best items for Yena are: Spear of Longinus, Sonic Boots, Shield Of The Lost, Medallion of Troy, Fenrirs Tooth, Blade of Eterenity.
Best Arcana for Yena are: 10 Onslaught, 10 Benevolence, 10 Skewer.
Best Rune for Yena are: Lokheim + Vena.
Passive: Lunar Phase
Yena’s movement speed while dual-wielding is increased by 40 points (increases by 10 every ability level) and when she deals damage, she marks her targets with Mark of the Blade, which lasts for 5 seconds and can be stacked. Target takes 200% of AD physical damage at 5 stacks, is silenced for 1 second, and moves 80% slower. Her attack speed is slower while her blades are merged, but she causes 50% more damage. She is also 50% more resistant to harm while performing abilities and immune to control effects.
Skill 1: Crescent Strike
Yena dashes in the direction of the target and strikes twice while moving, delivering physical damage to foes in the vicinity of 80 (+43% of AD) to them. If she attacks an enemy, the power can be used again in the following five seconds.
Skill 2: Spinning Sickle
Yena throws her blades in the intended direction, hitting foes for 180 (+80% of AD) physical damage. At the end of the course, her blades continue spinning for a further three seconds while adjacent foes are dealt 72(+36% of AD) physical damage every 0.5 seconds for one second and have their movement speed reduced by 50% for one second. When Yena goes to get her swords, her ability’s cooldown is lowered by 5 seconds.
Skill 3: Full Moon
Combining her blades, Yena unleashes a sweeping assault that does 200 (+110% of AD) physical damage to all opponents in the area while also raising her attack damage for 5 seconds by 60. She acquires new skills with her combined weapon after activating this ability while losing her dual-wield abilities.