Amagical cat from Bandle City, Yuumi was once the familiar of a yordle enchantress, Norra. When her master mysteriously disappeared, Yuumi became the Keeper of Norra’s sentient Book of Thresholds, traveling through portals in its pages to search for her. Yearning for affection, Yuumi seeks friendly companions to partner with on her journey, protecting them with luminous shields and fierce resolve. While Book strives to keep her on task, Yuumi is often drawn to worldly comforts, such as naps and fish. In the end, however, she always returns to her quest to find her friend.
“Cats are made of twilight and tricks, dogs are made of barks and sticks! Book’s just old trees.”
Cooldown: 18-6 seconds (level 1-18)
Yuumi periodically empowers her next basic attack against an enemy champion. This attack restores 25-100 (+8% maximum mana) (levels 1-18) mana and grants her a 50-300 (+40% of ability power) (levels 1-18) damage shield that lasts until it is broken.
If Yuumi is Attached, the shield protects her ally instead.
Cooldown: 13.5 / 12 / 10.5 / 9 / 7.5
Mana Cost: 75 / 80 / 85 / 90 / 95
Yuumi fires a missile that deals 40 / 65 / 90 / 115 / 140 / 165 (+45% of ability power) (+2/3.2/4.4/5.6/6.8/8% of target's current health) magic damage to the first enemy hit. If the missile is in flight for 1 second, it instead deals 50 / 85 / 120 / 155 / 190 / 225 (+65% of ability power) magic damage and applies a 20% slow to enemies for 1 second.
If Yuumi is Attached, she fires the missile from her ally's position and can direct the flight of the missile for up to 3 seconds.
Passive: While Attached, Yuumi and her ally share 5 / 7 / 9 / 11 / 13 (+4 / 7 / 10 / 13 / 16%) adaptive force, granting each other bonus attack damage or ability power (depending on which their ally has more of) equal to a percentage of their own attack damage or ability power (depending on which of the two is higher).
Yuumi starts the game with one point in You and Me!, while Prowling Projectile has 6 ranks.
Active: Yuumi dashes to an ally champion and attaches to them. While Attached, she follows her ally's movement and is untargetable by everything except tower damage. Yuumi's abilities fire from her ally's location, and she can't attack enemies.
Yuumi can switch among her teammates without a cooldown. If Yuumi re-activates the ability without a valid target, she will detach from her ally and dash up to 250 units in the target direction. Yuumi also detaches automatically if the ally she is attached to dies.
Mana Cost: 40 / 45 / 50 / 55 / 60 mana (+15% max mana)
Yuumi restores 70 / 100 / 130 / 160 / 190 (+400% of ability power) health to herself and gains 25% (+10% per 100 AP) bonus movement speed and attack speed. If Yuumi is Attached, her ally is targeted by the spell instead.
Cooldown: 130 / 110 / 90
Mana Cost: 100
Yuumi recoils and opens Book, launching 7 waves of 60 / 100 / 140 (+20% of ability power) magic damage over 3.5 seconds. Enemy champions who are hit by multiple waves take only 50% damage from any wave beyond the first, and they are rooted for 1.75 seconds when struck by three waves.
During Final Chapter, Yuumi can move and cast You and Me! and Zoomies.