Hey there, I am a Master Elo support/mid main. I play champs like Yuumi and Sona, but also Xerath, Pyke or Ashe support! On mid I play most mages. I peaked at Rank 2 Yuumi on EUW! You can watch me play live on Twitch. You can always ask questions there or just hang out.

No. Don't play this champ until buffs or a rework. It is legitmately trolling your team 90% of the time.

- Insane scaling
- Relatively easy to learn
- Some decent synergies
- Unique Playstyle

- Weak early
- Has some really tough lanes
- Can be punished hard
- Always give a double kill (your carry dies, you die)

The actual highest winrate and strongest runes right now is the first set mentioned above. This is because Summon Aery applies with your E, Q and Auto and also transfers to your ally, this means you use it very well! Scorch is a valid early game rune as it provides a bit of extra damage but the choice tto go Gathering Storm is also fine! However, always go Transcendence. The secondary rune tree using Precision set is decent, especially Presence of Mind is great on the cat, she uses a ton of mana. Cut Down because everyone has more HP than you, literally everyone. For games where you hard won the draft, you can go domination with Eyeball Collection and Ultimate Hunter.

Guardian

- Very decent versus burst comps or strong engage and can often save a life, or win the 2v2 with an unexpected shield
- Falls off hard late because Yuumi does not really build HP

Summon Aery

- Offers good scaling and is the better option for 90% of your games
- The shield applies really well with Yuumi's champ design

Not much to say, if you have an insane carry and your Prowling Projectile damage isn't needed go max Zoomies into You and Me!. Just read what the abilites do :)

You pretty much go Moonstone Renewer every ranked game, experiment with options like Luden's Tempest in Normals or Flex :)

Dark Seal is insnane on Yuumi as you should not be dying a lot.

Staff of Flowing Water if your ADC is useless or if you have an APC, or a fed Kata or Akali on your team!

Ardent Censer is good with AA based carries!

Mikael's Blessing is great against blocking a single important ability and provides a small clutch heal.

Chemtech Purifier used to be a must build, however (Since 12.11), unless the enemy has a hard to deal with: Aatrox, Warwick, Red Kayn, Soraka, Sona: Don't build it, you get more value for other items.

Hope this helps out. Follow on Twitch for live gameplay! GL&HF!