Battle Pets with the Hiss ability: Undercity Cockroach Sand Scarab Fire-Proof Roach Locust Tol'vir Scarab Deepholm Cockroach Crystal Beetle Coral Adder Temple Snake Grove Viper Emerald Boa Adder Nether Roach Savory Beetle Sidewinder Zooey Snake Resilient Roach Death's Head Cockroach Son of Sethe Slithering Brownscale Cavern Moccasin Spawn of Merektha Sandshell Chitterer Deathsting Scorpid Hissing Chitterspine Junkheap Roach Bonebiter Scarab Hatchling Tainted Cockroach Albino Snake Moccasin Black Kingsnake Brown Snake Crimson Snake Cobra Hatchling Tiny Flamefly Snake Cockroach Rat Snake Tree Python Beetle Fire Beetle Water Snake Roach Silithid Hatchling Ash Viper Lava Beetle Gold Beetle Rattlesnake King Snake Irradiated Roach Dung Beetle Creepy Crawly Twilight Beetle Rock Viper Coral Snake Stinkbug Hissing Deathroach