Bat build — pet farming Lv 1–10

The Bat pet drops from killing 5,000 Bats. The optimal grinding stage is 1-7 City Outskirts where Bats spawn at 37% of the monster pool — higher than any other stage.

Composition

• Priest (slot 1) — high-armor tank, heals the party.
• Sorcerer with Fire Hydra maxed (slot 2) — sticky AOE that hits every Bat in melee range. Lv 25 minimum for the second sticky cone.
• Ranger (slot 3) — cleanup; her base attack handles the survivor that escapes the Hydra.

Gear focus

• Attack speed across the board — Bat clear time is the bottleneck.
• +Drop Chance and +Gold rolls everywhere; you'll farm this stage 30+ hours.
• Skip critical chance/damage — single-bat HP is so low that crit rarely kicks in before a Hydra tick finishes the job.

Why not Knight?

Knight blocks more damage but Priest's % AD buff to the party is worth ~15% extra Hydra damage. At Stage 1-7 you don't need extra block.