TFT Reroll Fundamentals: Every Comp Is a Reroll Comp

TL;DR: The mindset shift that simplifies rolling: every comp is a reroll comp, and it just depends which level you roll at. This guide covers the opportunity cost of holding pairs, why rolling for 12+ possible hits beats forcing 6 specific units, when not to level, and how to balance your board, with Set 18 examples from patch 18.3.

Stop sorting comps into “reroll” and “not reroll.” They’re all reroll comps. The only question is which level you roll at, and how flexible you are when you do.

Introduction

Conceptually, you should think about every comp as a reroll comp. There are set boards, and you play whatever the set board is, rolling for that comp on whatever level is most efficient.

Comp type	Best level to roll	Set 18 example (patch 18.3)
1-cost carry	Level 4-5	Spellweaver Veigar (S tier): 1-cost Veigar, rolls at 5
2-cost carry	Level 6	Blackthorn Warwick (B tier): 2-cost Warwick, rolls at 6
3-cost carry	Level 7	Flora Fatalis Kha’Zix (S tier): 3-cost Kha’Zix, rolls at 7
4-cost carry	Level 8	Juggernaut Zyra (S tier): 4-cost Zyra, fast 8
5-cost carry	Level 9-10	Juggernaut Ashe (S tier): 5-cost Ashe, fast 9

Each example is a line from our comps page at patch 18.3 whose carry has that cost and whose level plan matches the row. Riot’s own 18.3 patch notes call Veigar a reroll carry, and Warwick and Murkwolf, the “Wolf Bros”, a level 6 reroll comp. The shop odds behind these levels, and how many copies of each cost are in the pool, are in the champion pool and odds guide.

In theory, every comp is a rerolling comp. It just depends on what level you want to reroll at.

People say “I hate reroll”, but there’s really no big difference. It’s just about when you spike and the timing of when you’re strong. Don’t get stuck on “I’m reroll, I’m not reroll.” That’s not the important part.

Part 1: The Opportunity Cost of Holding Units

The Kha’Zix Pair Example

Kha’Zix is really good: Flora Fatalis Kha’Zix is S tier at patch 18.3. The downside? You’re perpetually poor.

Problem	Why
Holding a pair	It might not come into fruition.
2/3-cost pairs	Even more expensive to hold.

Key insight: There’s an opportunity cost every time you hold a unit that may not pay off.

The Decision Framework

Question	Action
What’s in the shop?	If nothing’s enticing, holding a pair is reasonable.
Do I have synergy?	Rek’Sai matches Veigar (both 1-cost Blackthorn), so it has value.
Am I committed?	Only hold if it fits your potential lines.

Part 2: When to Take Reroll Augments

Evaluating Your Spot

Example scenario:

• You have AP items.
• No real future with your current board.
• Not currently good on your board, but it could be.

Consider taking the reroll augment if:

• AP makes sense with the units.
• You have no better options.
• You can make econ work.

The “Don’t Level When Weak” Principle

Situation	Action
Not going to be strong	Don’t level, even if it makes your board slightly stronger.
Can win this fight	Level if it guarantees the win.
In between	Chill, make econ.

The rule: If you’re not win streaking, not lose streaking, and not making interest, you’re just in the middle, not making money at any point. That 4 gold for leveling is really important for your overall economy.

Part 3: Trait Augments and Augment Selection

Example: Item Extraction, the Blackthorn Augment

One downside of a trait augment that hands you units: you then have to play around that trait one way or another. Item Extraction gives you an Azir, a Veigar and a Rek’Sai, per the game data at patch 18.3, so now you have to think about Blackthorn.

Option	Consideration
Blackthorn Warwick	Could be good: Warwick, Rek’Sai and Azir are all in it (B tier, rolls at 6).
Blackthorn Veigar	Roll for Veigar at 5 instead (A tier).
Econ	Make money.

Item Flexibility

Item	Consideration
Chain Vest on Malphite	The line’s highest-cost tank: a good temporary item.
Spear of Shojin + Sterak’s Gage	Two of Warwick’s three items in Blackthorn Warwick.

Key insight: People get stuck on BIS. You don’t need best-in-slot; you just need a good mix of items.

Part 4: Frontline vs Backline Balance

The Common Mistake

Scenario: you’re rerolling a melee 2-cost carry like Warwick, with Murkwolf beside him.

The trap: “I’ll make damage items for Warwick, and also make damage items for Murkwolf.”

The reality: You need a good frontline so your damage dealer can do more damage.

Bad approach	Good approach
Two damage dealers, no frontline	Balanced frontline and backline.
All damage items, split across Warwick and Murkwolf	Tank items on Malphite, damage on Warwick.
Tanks fall over immediately	Tanks survive long enough for carries to work.

Analogy: Just like League of Legends, you need a good mix of frontline and backline. If you have only damage dealers and your tanks fall over, it doesn’t matter how much damage you deal.

Part 5: Rolling Efficiency

When Rolling Is Efficient

Situation	Efficiency
Rolling for multiple things	Highly efficient.
Rolling for 6 specific units	Very inefficient.

Why

• Set 18 has 65 champions.
• If you’re only rolling for 6 of them, you’ll most likely miss.
• If you’re holding for 12+ possible things, rolling becomes much more efficient.

Example: Flexible Roll-Down

In this scenario, I’m holding for:

• A key 4-cost unit (2-star).
• Rek’Sai 2 (1-cost Brawler).
• 12+ possible things.

Result: Rolling becomes efficient because I have many potential hits.

The “Rolling to Win” Principle

Situation	Action
The fight is super important	Roll for any upgrade.
On a win streak	Any amount of board strength is okay.
You have pairs	Roll if you can hit.

Key insight: Rolling for multiple things is efficient. Rolling for only six particular units is a lot less efficient.

Part 6: Streaking & Economy

Maintaining Your Streak

Phase	Action
On a streak	Maintain it with minimal spending.
Need to win	Roll if it secures the streak.

The math

• If you lose some gold to roll but maintain your streak, you get your money back.
• It’s about the money you make, not the money in your bank right now.

When to Stop Rolling

Situation	Action
Hit your key upgrades	Stop rolling.
Streak secured	Econ back up.
Multiple pairs	Continue if you’re close.

Part 7: The Warwick Reroll Example

The line is Blackthorn Warwick, B tier at patch 18.3: Warwick and Murkwolf, both 2-cost Ravagers, are the 3-star carries, and it rolls at 6.

Early Game

Action	Reasoning
Hold pairs	Warwick, Murkwolf, Rek’Sai, etc.
Don’t level	Not strong enough to justify it.
Make econ	Save for a roll-down on Level 6.

Augment selection

Augment	Consideration
Item Extraction	Hands you Blackthorn units (Azir, Veigar, Rek’Sai), and Warwick is Blackthorn.
Heroic Grab Bag	Its Lesser Champion Duplicators copy a champion of 3-cost or less: extra copies for a reroll.

Decision: Take the augment that fits the pairs you’re holding, and make econ.

Mid-Game (Stage 3)

Action	Reasoning
Roll on 6	Warwick is a 2-cost carry.
Hold multiple pairs	Makes rolling efficient.
Maintain streak	Roll to secure wins.

Key insight: If you’re rolling for multiple things (Warwick, Murkwolf, Rek’Sai, etc.), rolling is more efficient.

Late Game (Stage 4+)

Action	Reasoning
3-star Warwick	Main carry done.
3-star Murkwolf	Second carry done.
2-star Malphite and Krug	Frontline secured.
Look for flex upgrades	Brambleback, Azir, Diana.

Part 8: Positioning for Reroll Comps

General Principles

Goal	How
Frontline value	Put Malphite where the enemy hits first: Monolith gains Armor and Magic Resist for each enemy targeting him.
Matchup-specific	Position for your most important fights.
Carry side	Put Warwick on their carry’s side, or on the edge to wrap around their tank.

The positioning guide covers when to take their carry’s side and when to wrap.

Example: Warwick Positioning

Matchup	Action
Melee comps	Less worried: their melee units walk into your frontline, within Warwick’s reach.
Ranged comps	More worried: put Warwick and Murkwolf on the edge so they wrap to the backline.

Part 9: Common Mistakes

Mistake	Fix
Holding pairs that never hit	Sell them if they’re not coming.
Leveling when weak	Save gold, make econ.
Not balancing frontline/backline	Build tank items too.
Rolling for only 6 units	Hold more flexible options.
Ignoring streak maintenance	Roll to keep the streak alive.

Part 10: Final Thoughts

The key takeaways

1. Every comp is a reroll comp: it just depends on which level you roll at.
2. Rolling is more efficient when you’re flexible: if you’re rolling for 12+ possible things, you’re likely to hit something.
3. Don’t level when you’re weak: save the gold and make econ.
4. Balance frontline and backline: two damage dealers with no frontline is a loss.
5. Being on-streak is valuable. Spend to maintain it; you’ll get the gold back.
6. The opportunity cost of holding units is real: don’t hold pairs that never come.

The Takeaway

Whether you’re playing a 2-cost reroll like Blackthorn Warwick or a 4-cost comp like Juggernaut Zyra, the principles are the same:

• Know your carry’s level.
• Roll efficiently.
• Balance your board.
• Maintain your streak.

Don’t get stuck on labels. Focus on fundamentals.

Good luck on the Convergence, and may your rerolls be blessed.

Update log

• 2026-09-27: Examples updated for Set 18 patch 18.3; the Set 17 reroll, hero augment, pair and synergy examples now use Blackthorn Warwick, Item Extraction, Heroic Grab Bag, Kha’Zix and Rek’Sai with Veigar, the roll-level table gained a Set 18 example column from our comps page, and the unit count is Set 18’s 65 champions.