From Emil Chronicle Wiki

Heavy Bat is a level 65 monster.

[edit] Stats

Basic	Combat
Level 65 Experience 1,650 Job Experience 1,250 HP 2,800 SP 200 MP 200 Behavior Passive, Cast Sensor (Range)	Type Bird A.SPD 3.00 ATK 250 - 300 DEF 170 C.SPD 2.00 M.ATK 250 - 300 M.DEF 160
Properties Wind Item Drops Organic Meat, Golden Canine, Torn Magic Book, Metallic Stone3, Sharp Canine Skills Thunder Bolt Location Light Tower (Main Floor 1F, 2F, B-8F, Sky Staircase Path)