BTD6 Pedia

Tier 4 upgrade

Primary Mentoring

Primary Mentoring (4-0-0) gives Primary towers free tier 1 upgrades, +5 range and 15% shorter ability cooldowns. Best uses explained.

All Primary Monkeys in radius get tier 1 upgrades for free, increased range and reduced ability cooldowns.

In-game description
  1. Bigger RadiusBigger Radius
  2. Jungle DrumsJungle Drums
  3. Primary TrainingPrimary Training
  4. Primary MentoringPrimary Mentoring
  5. Primary ExpertisePrimary Expertise

Stats

Main attack

Damage
N/A
Pierce
N/A
Attack speed
N/A
Range
48
  • Main:
  • Camo: Restricted (can be upgraded to grant camo detection as 4-2-0)

How to use Primary Mentoring

Primary Mentoring improves the Primary buff: towers in range now get free tier 1 upgrades, +5 range on top of the Primary Training bonus, and 15% shorter ability cooldowns. The Village itself also gains 7 range, going from 48 to 55.

When to buy it

The cooldown reduction is the reason to buy it. It shines next to Primary towers with activated abilities:

The free tier 1 upgrades and range are nice extras, but not worth the price on their own. If none of your Primary towers have abilities, keep the Village at Primary Training and spend the money elsewhere.

Free tier 1 upgrades apply to towers placed in range, which also helps if you place many cheap Primary towers there.

Is it worth it?

Situationally. With ability-based Primary towers, yes. Without them, a Primary Training or a 2-3-0 Village is better value.

Frequently asked questions

Does Primary Mentoring give free upgrades?

Yes. Primary towers in range get their tier 1 upgrades for free.

How much does Primary Mentoring cost?

$2,500 on Medium. All difficulty prices are listed on this page.

Does Primary Mentoring reduce ability cooldowns for all towers?

No, only for Primary towers in range.

Guides that use Primary Mentoring

All Monkey Village upgrades

Prices for