Kha Y Tran Diana reroll is one of the strongest 3-cost comps in TFT Set 17 Patch 17.3. At first, she may look simple. However, once she gets the right items, she becomes extremely hard to kill. In addition, her damage keeps increasing throughout the fight. As a result, she can carry entire games on her own.
Moreover, this comp becomes even stronger with a Vanguard Emblem. Therefore, if you hit the right setup, Diana can easily secure a top-four finish and often take first place.
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Why Diana Reroll Is So Strong in TFT Patch 17.3
Diana scales with attack speed. Therefore, the faster she attacks, the more damage she deals.
In addition, Bloodthirster gives her strong healing. Meanwhile, Titan’s Resolve provides both damage and durability. Together, these items turn Diana into a powerful front-line carry.
At the same time, Illaoi absorbs damage for the team. Meanwhile, Aurora deals magic damage from the backline. Because of this, the comp performs very well in long fights.
Strengths
- Diana 3-star can solo entire teams.
- Her damage increases over time.
- She heals a huge amount.
- The comp scales very well with a Vanguard Emblem.
- Aurora or LeBlanc add reliable secondary damage.
Weaknesses
- The comp requires a lot of gold.
- Diana needs specific items.
- Therefore, it is difficult to force every game.
When Should You Play Diana Reroll?
Although this comp is very strong, it is also situational. Therefore, you should only commit when your opener is good.
Good conditions include:
- You find several copies of Diana early.
- You receive a Vanguard Emblem.
- Your blessings grant bonus health or defenses.
- You naturally hit Illaoi and Aurora.
On the other hand, if you do not meet these conditions, it is usually better to pivot into another composition.
Best Diana Reroll Team Composition
At Level 8, your final board usually includes:
- Diana
- Illaoi
- Aurora
- Nunu
- Leona
- Jarvan IV
- LeBlanc
- One extra Vanguard or a strong 5-cost utility unit
Overall, your main goal is simple: keep Diana alive for as long as possible.
Best Items for Diana
Diana needs three key stats:
- Attack speed
- Healing
- Durability
Core Items
- Guinsoo’s Rageblade
- Bloodthirster
- Titan’s Resolve
Alternative Items
- Hand of Justice
- Giant Slayer
- Edge of Night
Most importantly, Guinsoo’s Rageblade is mandatory. Without it, Diana loses much of her scaling power.
Best Items for Illaoi
Illaoi is your main tank. Therefore, she should hold all defensive items.
Best choices include:
- Warmog’s Armor
- Bramble Vest
- Dragon’s Claw
- Spirit Visage
- Protector’s Vow
Best Items for Aurora
Aurora is your secondary carry. As a result, she benefits from mana and ability power items.
Recommended items:
- Spear of Shojin
- Jeweled Gauntlet
- Rabadon’s Deathcap
Alternatively, if you do not hit Aurora, you can use LeBlanc instead.
Best Augments for Diana Reroll
Because this comp is expensive, economy augments are extremely important.
Top choices include:
- Diamond Ticket
- Pandora’s Items
- Collective Hug
- Heroic Grab Bag
Ideally, you should take two economy augments and one combat augment.
Early Game Strategy
During Stage 2, your main goal is to collect Diana copies.
First, build a simple Vanguard frontline. Then, slam Diana items as early as possible.
If your board is weak, you can loss streak to secure better item components. However, if your board is strong, you should instead play for a win streak.
Mid Game Strategy
Stage 3 is the most important part of the game.
When to Level to 7
- If you are healthy, level to 7 at 3-7.
- If you are weak, level to 7 at 3-5.
What to Roll For
At Level 7, prioritize:
- Diana 2-star
- Illaoi 2-star
- Aurora or LeBlanc
- A stable frontline
After that, save gold and slow roll above 50 gold.
Eventually, your goal is Diana 3-star.
Late Game Strategy
Once you hit Diana 3-star, continue upgrading the rest of your board.
Next, you should:
- Upgrade Illaoi to 3-star if possible.
- Upgrade Aurora if uncontested.
- Push to Level 8.
- Add a strong utility unit.
In most games, this is enough to secure a top-four finish.
Positioning Guide
Proper positioning is critical for this composition.
- Place Diana on one side of the frontline so she can jump directly onto enemy carries.
- Position Illaoi in the center to absorb the bulk of incoming damage.
- Keep Aurora in a protected backline corner.
- Finally, scout every round and adjust Diana’s position accordingly.
Advanced Tips for Diana Reroll
- Prioritize Guinsoo’s Rageblade above all else.
- Never force this comp without an early Diana.
- Pop your Super Beast loot as soon as it offers Illaoi or Aurora.
- Do not greed for a larger jackpot.
- Use LeBlanc if Aurora is unavailable.
Best Matchups
Diana reroll performs well against:
- Slow scaling comps
- Teams with low burst damage
- Lobbies where Diana is uncontested
However, it struggles against teams that can burst Diana before she ramps up.
Final Thoughts
Overall, Diana reroll is one of the best comps in TFT Set 17 Patch 17.3.
If you find Diana early, build the correct items, and manage your economy well, this comp can consistently finish in the top four. Furthermore, in the right lobby, it can easily secure first place.
For more meta team comps, visit https://op.gg/tft/meta-trends/comps.
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Quynh Bui 
