Advanced · Article 2

Best breeding passives — inheritance rules explained

Passives inherit with a 30% per-parent-slot roll and up to four slots. Plan your parents backwards from the final child.

Updated 2026-07-27

Key takeaways
  • The 4-passive stacking rule
  • Filter parents with Musclehead + Ferocious first
  • Cake efficiency

The 4-passive stacking rule

Each parent contributes up to four passives to the pool. Children roll 1-4 passives from that combined pool, weighted by parent count.

Filter parents with Musclehead + Ferocious first

Farm the two most common combat passives on cheap parents (Lamball, Cattiva) before chasing Legend.

Cake efficiency

One Cake per breed cycle — batch 20 Red Berry Cakes before starting a passive chain so you don't stall the ranch.