Which stat should I train?

Strength helps warriors, builders, carrying, and physical work. Agility helps scouts, travel, and dodging. Intellect helps healers, caretakers, builders, and careful work.
A role drill focuses the stats used by that job. Training can also improve Combat Level, but a high number does not make a hungry, thirsty, hurt, or exhausted pet safe.

Who can train?

Adults use the hands-on drills. Younger pets learn through mentor assignments instead.
A pet may be blocked because it is asleep, sick, quarantined, hurt, low on Energy or Mood, or still on cooldown. Training requires at least 20 Mood to begin; each ordinary drill then spends 3 Mood. Its card tells you the exact reason.
Elder Training Mentors can add a small EXP bonus. They do not remove costs, cooldowns, or danger.

What is spent?

Starting a drill spends the Energy, 3 Mood, cooldown, and one personal session shown on the page. A pet below 20 Mood must recover before beginning another focused drill.
Group Drill is repetition relief, not a discount: every selected pet spends those same individual costs and sessions before the shared minigame begins.
If the page reloads, resume the prepared drill before its timer ends. Abandoning a single or group drill does not refund what was spent.

Can training be dangerous?

Yes. Mud, damaged equipment, heat, cold, storms, and predator pressure can raise the danger or close the grounds.
Upgrades and maintenance make the room safer. Rest and healing fix the pet after a bad result.