Brutal 12-3 food leveling

Campaign > Brutal > Chapter 12 > Stage 3.

Before you go

Unlock Brutal Chapter 12 and clear 12-3 reliably with one Champion.
Bring up to three low-rarity Champions you have checked and are willing to level as food.
Have Energy available and space to collect drops.

Open the stage’s loot preview and confirm the current rewards before committing Energy.
Set a durable, high-damage farmer as the lead carry; put food Champions in the other slots.
Run 12-3 manually if needed until the farmer clears without help, then use eligible auto-battles.
After each batch, review leveled Champions and rank up only those ready for the next star.
Inspect campaign gear: keep useful pieces that improve your roster and sell unwanted shields and other gear.
Use the Silver on needed upgrades, then return to the stage while food remains the priority.

A failed run wastes the Energy and does not level the passengers; step down to a reliable stage if the farmer cannot solo it.
Check duplicates, rarity, and account plans before feeding a Champion, especially for Faction Wars or Guardian Ring use.

Repeatable with Energy. Continue leveling food, then rank it up and refill the passenger slots; sell unneeded drops after each batch.

Taking an unproven farmer into a stage that requires support; test solo reliability first.
Feeding a useful or limited Champion; verify its role and duplicate options before sacrificing it.
Keeping every campaign drop; retain pieces that help and sell the rest to recover Silver.

Switch to masteries, dungeon gear, or a roster objective when those would improve account progress more than another batch of food.

Sources & fact checks

Open a guide to find other locations and see what the item is used for.

Campaign XP and food

Builds rank-up champions while generating campaign gear to sell for Silver.