Hi,everyone. I'm basrty1p from Garena Thailand Server
I'm playing Taliyah during season 11 as a JunglerNow I'm currently to Gold IV. I still need improved my ranking and gameplay but I think this guide will help everyone who wants to test her or enjoy her make much more easier to play her.
So let's find what she can do and how to play her.

After her rework in Patch 12.9, she becomes a DPS, scaling and control Mage instead of being burst Mage she used to be. It makes her return to mid laner and her jungler becomes weaker but still playable.
Now her mid laner becomes much stronger in the late game and much CC in kits making her so strong in team fights and easier for new players but still difficult to play
Let's see what her skills look like.

Pros

+ Extermely Strong in Late Game + DPS Potential + E Stun to deny all dash champion + Insane damage + Slow from Worked Ground + Best waveclears from AOE Q + R no longer get knock you out from any damage + Roaming Potenial

After rework her skill, she becomes insane DPS, control mage as she should be. With her Threaded Volley, she can clear jungle paths or wave in lane faster than the older version. Unraveled Earth can stun them when they dash through them,making her counter many dash champions in the game. Weaver's Wall now stable as before, she can ride her wall without any damage making her knock-up from the wall anymore. this'll make her outplay and roaming potential even stronger in mid-game. Her Worked Ground becomes useful more than the old one, makes slow and deals double damage to the primary target. Really good for sure.

Cons

- Very bad early game - Get countered from blink skill - Mana issue - Still difficult to play - Very bad when be behind too much

Even though she's very good right now, her weakness is even worst as she no longer being a threat to the early game anymore. Because she needs to spam skills for peeling and kiting them, she needs a lot of mana to consistently spam her skill the entire game, this's the biggest issue I found in her. Her early damage is so low that can't duel the other champions in lane and jungler. if you can't reach the mid-late game, really far behind to come back.

New Jungler Item As a new jungler system,depending on the matchups. For,me Gustwalker Hatchling will give you more mobility in bush or help laner faster in late game. Scorchclaw Pup allow you to deal more damage than before if you want to oneshot someone in late game. you will only use this Mosstomper Seedling when you need to get longer teamfights

Doran's ring It give you AP,HP and Mana regen passive. It's great choice when your Q is still weak,mana issue and you just want to farm. Great early item

Corrupting Potion Best Potion in the game. It can regen mana and HP at the same time. It'll be better if you bring Time Warp Tonic too. Great choice for every matchups

Sorcerer's Shoes This shoes will always best for her since it give Magic penetration to deal more damage. If you want to reduce CD to spam your skill as much as possible, Ionian Boots of Lucidity is also great for you

Luden's Companion Best for doing DPS and brust damage. Massive damage for your kits, But it'll be bad when you just only meet Tank comp. in the game.

Liandry's Torment If you meet so many tank champion in your game, you should buy this until you have a core item.

Zhonya's Hourglass Must buy for every mage in the game. it can makes you untargetable from every skill will come to you but you can't use your skill during stasis. You can cast Q first and press it to surprise them. But in patch 14.1,this item has a high cost, that means you need to be careful more than ever when you meet a lot of assassins.

Seraph's Embrace If you have mana issues during your game, you can buy this to fix that problem and it give you Magic stats and low hp,shield passive too.

Shadowflame Massive AP,Magic Pen and Massive passive that deal more damage for low hp, Must buy for brust damage and one kill combo.

Morellonomicon Best for Anti-Heal and give you great AP. But if you want to save your gold and fight sustain champion, maybe you should buy Oblivion Orband leave like that until you have more gold to buy full version

Banshee's Veil So many poke,one combo and hook? Buy this along with Zhonya's Hourglass

Rylai's Crystal Scepter It give you slowpassive to your skill. It makes you kite them easily and good HP you can receive.

Rabadon's Deathcap Massive AP in the game if you can do some lead to buy this.

Void Staff You will need to buy this if they have MR(Magic Resistance) items after 2 items.

Mejai's Soulstealer Risky Choice. High reward for snowball but if you die, you'll lose a lot of AP you have. It's up to you to decide for yourself.

Cosmic Drive Best for kitting and movement speed when you have a longer fight or trying run away from enemy.

Stormsurge Another brust item for full brust build. you can one-shot the entire game with Luden's Companion and Shadowflame

Malignance Don't ever buy this item. It's completely useless item for Taliyah because her wall(R) didn't deal any damage.

Riftmaker Great item for sustain and a lot of hp. this item will grant you with gain 2% of your bonus health as ability power. You should buy this if you want to sustain your own, fight ***sasin and make a battle mage build. But honestly,it's a rare situation.

Lich Bane This item will only good if you can poke your AA(Auto attack) to your enemy. Not a bad choice.

Cryptbloom It has 30% magic penetration,act like a Void Staff but can heal for your team. After enemy dies,create a healing nova at their location and heal allies who stay in the healing nova. If you want magic pen(Percent) like void staff but can support your team, perhaps this item can help you that point. But it has a long cooldown.

Rod of Ages Best sustain for battle mage build and late game potenial win. Great passive for restore your mana(equal to 7% of premitigation damage taken from champions) and health(equal to 25% of Mana spent) and lots of hp you can get. You'll be tanky and can't be killed easily in the late game. But it's too slow for getting full stats and deal low damage in the early game. If you want to end game quickly, not recommend this item.

Hextech Rocketbelt Rarely use but extrmely fun to play with. It allows you to have a dash and deal damage too. So you have a lot of option to play around with this item.

Blackfire Torch (14.10 item) Burn item version as a Mana item but extrmely useful in Jungle Role because it give her faster clear. Must buy in every game she's palyed as a Jungler.

Feats of Strength System In Season 15 or Noxus patch, Feats of Strength is added to the game for snowball team. If you can acquire it during early game, you can buy tier 2 boots updgrde which is gamechanging

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V12.10 - May 25th Hotfix
Rock Surfing
Fall off timer increased to 3 seconds from 2.5.
Bonus movement speed reduced to 10 / 15 / 25 / 40% (based on level) from 10 / 20 / 35 / 55% (based on level).
Bonus movement speed in ProfileIcon0785 The Thinking Manatee.png URF reduced to 10% − 95% (based on level) from 10% − 110% (based on level).
Threaded Volley
Boulder slow reduced to 20 / 25 / 30 / 35 / 40% from 30 / 35 / 40 / 45 / 50%.
Boulder slow duration reduced to 1.5 seconds from 2.
Boulder damage reduced to 190% from 200%.
Unraveled Earth
Set stun duration changed to 0.75 seconds at all ranks from 0.6 / 0.7 / 0.8 / 0.9 / 1.
Slow reduced to 20% at all ranks 20 / 22 / 24 / 26 / 28%.
V12.11
Stats
Base health reduced to 550 from 570.
Threaded Volley
Cooldown increased to 7 / 6 / 5 / 4 / 3 seconds from 6.5 / 5.5 / 4.5 / 3.5 / 2.5.
Base damage changed to 40 / 60 / 80 / 100 / 120 from 38 / 61 / 84 / 107 / 130.
Unraveled Earth
Damage against monsters increased to 150% from 100%.
Weaver's Wall
NEW EFFECT: Dealing Basic Attack.png basic or ability damage now places the ability on a 3-second cooldown.
BUG FIX: Recast to collapse wall is no longer placed on cooldown due to taking damage from champions or turrets.
V12.13
Rock Surfing
NEW EFFECT: Cooldown no longer resets due to proc damage.
Threaded Volley
Base damage per stone increased to 45 / 65 / 85 / 105 / 125 from 40 / 60 / 80 / 100 / 120.
Base bonus monster damage reduced to 25 from 30.
Mana cost reduced to 55 / 60 / 65 / 70 / 75 from 60 / 65 / 70 / 75 / 80.
NEW EFFECT: Boulder now stuns monsters for 3 seconds.
Weaver's Wall
REMOVED: No longer placed on a 3-second cooldown when damaging a ward or trap.
V12.15 - August 10th Hotfix
Seismic Shove
BUG FIX: No longer gains stacks of Tear of the Goddess without hitting an enemy.
Unraveled Earth
BUG FIX: No longer gains stacks of Tear of the Goddess without hitting an enemy.
V12.15
Threaded Volley
BUG FIX: Now has the proper mana cost at ranks 2 and 4.
Unraveled Earth
Cooldown increased to 18 / 17 / 16 / 15 / 14 seconds from 16 / 15 / 14 / 13 / 12.
Weaver's Wall
Wall duration reduced to 4 seconds from 5.
V13.9
Now her R will be cooldown in 3 second if she only gets damage from champions.
V13.15
Threaded Volley
Base damage per stone increased to 50 / 70 / 90 / 110 / 130 from 45 / 65 / 85 / 105 / 125.
Unraveled Earth
Cooldown reduced to 16 / 15.5 / 15 / 14.5 / 14 seconds from 18 / 17 / 16 / 15 / 14.
Monster damage increased to 175% from 150%.
V14.3
Threaded Volley
Base damage increased to 60 / 78 / 96 / 114 / 132 from 50 / 70 / 90 / 110 / 130.
Unraveled Earth
Cooldown reduced to 14 seconds at all ranks from 16 / 15.5 / 15 / 14.5 / 14.
V14.9
Threaded Volley
Mana cost increased to 65 / 70 / 75 / 80 / 85 from 55 / 60 / 65 / 70 / 75.
Bonus monster AP ratio reduced to 5% AP from 10% AP.
Boulder bonus monster AP ratio reduced to 9.5% AP from 19% AP.
V14.11
Threaded Volley
Base damage decreased to 56 / 74.5 / 93 / 111.5 / 130 (+ 50% AP) from 60 / 78 / 96 / 114 / 132 (+ 50% AP)
V14.13
Threaded Volley
Monster additional damage decreased to 10 from 25 per rock, no longer have 5% AP.