Game patch 26.20Data Dragon 16.20.1
Reference patch 16.20.1
the Magical Cat
Yuumi is a spell-focused champion who plays around range, cooldowns and controlled areas. This overview keeps the explanation practical and leaves patch-sensitive numbers to Riot's structured data and the current in-game tooltip.
Usual roleSupportStrengths and limits
These are kit-level patterns, not a promise that every lane or matchup plays the same way.
Practical champion reading
Use these patterns to ask better questions before choosing an item, target or commitment. They describe the kit, not a guaranteed result.
Magic resistance can reduce the broad spell profile, but positioning and cooldown tracking still decide whether the important abilities connect.
Do not judge the champion from one button. Watch which setup, payoff and escape tools are available before choosing a trade or commitment.
Ranged attacks are useful only while a safe line to the target remains. Flanks, hard control and blocked escape routes can remove that advantage quickly.
Protection, setup and information can matter more than personal damage. Position so the next useful spell can reach the ally or target that needs it.
Tenacity can shorten only eligible control. Displacements, airborne effects and repeated slows need their own positioning, blocking or movement answer.
Anti-heal or anti-shielding is situational. Buy it only when the effect is materially protecting targets and your champion can apply the answer reliably.
A spell being available does not mean the complete sequence is sustainable. Watch the resource bar as well as the setup and escape cooldowns.
Defensive item reference
Start with the threat that is actually affecting the match. These are conditional comparisons, not an automatic counter build.
Magic resistance addresses the broad damage profile, while Tenacity can shorten reducible control.
Choose Plated Steelcaps instead only when physical basic attacks from this champion or the rest of the team are the larger repeated threat.Normal Draft and Ranked role map
Each lane is assessed separately. Open a role to reach its queue-specific build and matchup preparation.
Historical reference. Recommendation review pending. Yuumi does not have a reviewed Top route for Draft / Ranked. A route shown in Swiftplay is kept separate because its starting rules, pace or evidence may be different.
Historical reference. Recommendation review pending. Yuumi does not have a reviewed Jungle route for Draft / Ranked. A route shown in Swiftplay is kept separate because its starting rules, pace or evidence may be different.
Historical reference. Recommendation review pending. Yuumi does not have a reviewed Mid route for Draft / Ranked. A route shown in Swiftplay is kept separate because its starting rules, pace or evidence may be different.
Historical reference. Recommendation review pending. Yuumi does not have a reviewed Bot route for Draft / Ranked. A route shown in Swiftplay is kept separate because its starting rules, pace or evidence may be different.
Historical reference. Recommendation review pending. Yuumi has an established low-income Support plan with useful lane pressure, protection, engage or team utility.
Situational AP purchase
Buy healing reduction when enemy healing or regeneration is deciding fights and you can keep damaging the relevant target. Grievous Wounds reduces healing; it does not reduce shields, magic damage or crowd control.
Oblivion Orb can provide healing reduction without immediately paying for a completed Morellonomicon. Fit the component around your core damage, mana and survival needs; check the current queue's item tooltip.
Complete Morellonomicon when its stats and slot efficiency suit your build. Do not treat it as a mandatory first item just because your champion deals magic damage.
Multiple Grievous Wounds sources do not add their percentages together. Another reliable applier may cover the same target, but you may still need your own source for a separate fight or target.
Repeated spell damage and damage over time can maintain coverage more reliably than a single hit. Match the purchase to your actual spell access, enemy sustain and the teammates who can apply the debuff.
If you die before dealing damage, you apply no healing reduction. If your target dies before healing, there is little healing to prevent. The debuff applies on qualifying damage immediately; it does not need to build up. It remains briefly after your last hit, so teammates can benefit even after you disengage.
Only healing during the active debuff counts. For example, 40% reduction prevents 80 of a 200-point heal, or 400 of a 1,000-point heal, before other modifiers. Compare that with the damage, penetration or survival you delayed; neither example guarantees a kill. Healing after the debuff expires is unaffected.
See the Oblivion Orb and Morellonomicon references for current effects and queue availability. These are situational decisions, not a measured best-build claim.
Kit reference
Ability names, descriptions and numeric fields come from Riot Data Dragon. Practical reads are independently written; the current in-game tooltip remains authoritative.
What it doesPeriodically, when Yuumi strikes a champion with an attack or ability, she restores health to herself and the next ally she Attaches to. While Attached, Yuumi generates a special bond with her allies. The ally with the strongest bond enhances Yuumi's abilities while she is Attached to them.
Practical readFeline Friendship is the always-on rule shaping Yuumi's normal trading and fight pattern. Watch its in-game state before committing.
What it doesYuumi fires a missile, dealing damage and slowing first target hit. It deals bonus damage and an enchanced slow if it takes at least 1.35 seconds to get to its target. While on her Best Friend, the slow is always enhanced and grants bonus On-Hit damage to her ally. While Attached, the missile can be controlled with your cursor for a brief period.
Practical readProwling Projectile is a ranged cast involving a slowing effect and basic-attack interaction. Respect its line or target area, and avoid spending it when the opponent can simply step away before the important exchange.
What it doesYuumi dashes to a target ally, becoming untargetable from everything except turrets. While on her Best Friend, she gains Heal & Shield Power and grants her Ally On-Hit healing.
Practical readYou and Me! contributes protection or sustain and basic-attack interaction. Its value changes with cooldown, range and target access; recognise the setup before moving into its effective area.
The protection or sustain is part of the cast's value. Compare its timing with incoming damage rather than reading only the offensive effect.
The cast changes position or access. Account for where the champion finishes, not only where the ability begins.
What it doesShields Yuumi and boosts Move Speed and Attack Speed. If she's attached, she passes it to her ally instead.
Practical readZoomies contributes basic-attack interaction. Its value changes with cooldown, range and target access; recognise the setup before moving into its effective area.
The protection or sustain is part of the cast's value. Compare its timing with incoming damage rather than reading only the offensive effect.
What it doesYuumi channels five waves that damage enemies and heal allies. Yuumi can move, attach, and cast Zoomies! while channeling. While on her Best Friend, this spell also follows her mouse.
Practical readFinal Chapter contributes protection or sustain and damage. Its value changes with cooldown, range and target access; recognise the setup before moving into its effective area.
This cast has a wind-up, charge or channel. Movement, interruption or a changing target state can matter before the effect completes.
Levels 1–18
Base values exclude items, runes, temporary buffs and mode-specific modifiers. Cooldowns are the listed base cooldown before ability haste.
Cooldown Data Dragon 16.20.1
Can receive its first point from level 1. Later ranks normally become available at levels 3, 5, 7 and 9.
Can receive its first point from level 1. Later ranks normally become available at levels 3, 5, 7 and 9.
Can receive its first point from level 1. Later ranks normally become available at levels 3, 5, 7 and 9.
First rank becomes available at level 6; later ranks normally become available at levels 11 and 16.
| Level | Health | Mana | Ability milestone |
|---|---|---|---|
| 1 | 500 | 440 Mana | Choose the first basic ability |
| 2 | 550 | 472 Mana | Add another basic ability or rank |
| 3 | 602 | 506 Mana | Add another basic ability or rank |
| 4 | 656 | 542 Mana | Spend one ability point |
| 5 | 713 | 579 Mana | Spend one ability point |
| 6 | 773 | 618 Mana | First ultimate rank normally available |
| 7 | 834 | 658 Mana | Spend one ability point |
| 8 | 898 | 700 Mana | Spend one ability point |
| 9 | 965 | 743 Mana | Spend one ability point |
| 10 | 1,034 | 788 Mana | Spend one ability point |
| 11 | 1,105 | 835 Mana | Second ultimate rank normally available |
| 12 | 1,179 | 883 Mana | Spend one ability point |
| 13 | 1,256 | 933 Mana | Spend one ability point |
| 14 | 1,334 | 984 Mana | Spend one ability point |
| 15 | 1,415 | 1,037 Mana | Spend one ability point |
| 16 | 1,499 | 1,091 Mana | Final ultimate rank normally available |
| 17 | 1,585 | 1,147 Mana | Spend one ability point |
| 18 | 1,673 | 1,205 Mana | Spend one ability point |
Choose the next question
Choose a queue-aware build, compare a lane opponent, or return to the full champion library.
