How to Play Mentor Kobuko
A stage-by-stage plan for Mentor Kobuko: opener, when to level and roll for Kobuko, and where to position the board.

- Tier
- F
- Top 4 rate
- 21.4%
- Avg place
- 5.54
- 1st place
- 3.6%
- Playstyle
- 2-cost reroll
- Games
- 28
How to level and roll with Mentor Kobuko
2-cost rerollMentor Kobuko is a reroll comp: slow roll at level 6 from stage 3-2, keeping 50+ gold and rolling only the excess until Kobuko and Janna reach 3 stars. At level 6, each shop slot has a 40% chance to be a 2-cost.
| Stage | Level | Action | What to do |
|---|---|---|---|
| 2-1 | 4 | Level | Level to 4 and play your strongest pairs; slam an early item if it saves HP. |
| 2-5 | 5 | Level | Level to 5 and keep building interest toward 50 gold. |
| 3-2 | 6 | Slow roll | Stay at level 6: roll only the gold above 50 each round until Kobuko and Janna hit 3 stars. |
| 3-5 | 6 | Slow roll | Stay at level 6: roll only the gold above 50 each round until Kobuko and Janna hit 3 stars. |
| 4-1 | 7 | Level | Once your 3-stars are done, level up and add the units that complete your traits. |
| 4-5 | 8 | Level | Level to 8 for 4-cost upgrades and a stronger frontline. |
| 5-1 | 8 | Roll down | Roll for the last upgrades and finish the board around Kobuko. |
Mentor Kobuko early game and opener
We don't have enough early-board data for Mentor Kobuko yet. Play your strongest pairs early and hold units that share traits with Kobuko.
Rolling odds for Mentor Kobuko
Your 3-star targets are Kobuko and Janna. Level 6 gives the best shop odds for them — use the calculator to see how much gold a 3-star costs.
Rolldown calculator: Kobuko
Pre-set to this comp's roll level. Change copies owned, copies other players hold and your gold.
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Mentor Kobuko positioning
A starting board for Mentor Kobuko. Drag units to adjust it, switch to the anti-assassin layout when the lobby has divers, and copy the Team Planner code into the TFT client.
- Corner Ryze on the back line and put Jarvan IV in front of it.
- Split Ryze and Senna across the back line so a single area spell can't hit both.
- Jarvan IV, Udyr, and Kobuko hold the front line — put the tankiest one opposite the enemy carry.
- Against assassins, step your carries up one row and leave Aatrox and Kobuko in the back corners as bait.
Positioning board

Drag a unit onto another hex to move it — dropping on a unit swaps them.
When to play Mentor Kobuko
Strengths
- Big power spike once Kobuko and Janna hit 3 stars
- Two damage threats (Kobuko and Ryze) make itemizing flexible
- Rarely played, so its units are usually free
- Strong mid game once the reroll units are upgraded
Weaknesses
- Average place is worse than 94% of comps of the same board size
- Falls off hard if someone else is rerolling Kobuko and Janna
Strategic Tips
Economy
Reach 50 gold, then slow roll at level 6 with only the excess until Kobuko and Janna are 3-starred.
Itemization
Build Warmog's Armor, Gargoyle Stoneplate, and Horizon Focus on Kobuko.
When to pivot
Scout at 2-1 and 3-2: if two or more players hold your core units, or you haven't found any by 3-2, move into one of the comps on the Similar Comps tab instead of forcing Mentor Kobuko.
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How to play Mentor Kobuko – FAQ (TFT Set 15)
How do you play Mentor Kobuko?
Mentor Kobuko is a reroll comp: slow roll at level 6 from stage 3-2, keeping 50+ gold and rolling only the excess until Kobuko and Janna reach 3 stars. Corner Ryze on the back line and put Jarvan IV in front of it. Build Warmog's Armor, Gargoyle Stoneplate, and Horizon Focus on Kobuko.
When should I roll down for Mentor Kobuko?
Mentor Kobuko doesn't do one big roll down. Slow roll at level 6 from stage 3-2, rolling only the gold above 50 until Kobuko and Janna are 3-starred.
What level do you roll for Kobuko?
Slow roll for Kobuko at level 6, where its cost tier shows up most often in the shop. At level 6, each shop slot has a 40% chance to be a 2-cost.
Is Mentor Kobuko a reroll comp?
Yes. Mentor Kobuko wants Kobuko and Janna at 3 stars, so slow roll at level 6 with gold above 50 until you hit them.
How do you position Mentor Kobuko?
Corner Ryze on the back line and put Jarvan IV in front of it. Split Ryze and Senna across the back line so a single area spell can't hit both. Jarvan IV, Udyr, and Kobuko hold the front line — put the tankiest one opposite the enemy carry. Against assassins, step your carries up one row and leave Aatrox and Kobuko in the back corners as bait.
What is the best opener for Mentor Kobuko?
Mentor Kobuko has no fixed opener: play your strongest early pairs, keep HP high and hold units that share traits with Kobuko.