Killer Instinct: The Beastmaster Compendium

There's no macc check for Corrosive Ooze so that's the go to as it cannot miss, exception being if the monster has an undispellable attack buff like Gaol bosses. Acid Mist isn't guaranteed, and requires an under leveled pet (caps at 114) in the leech, so that would be harder to land.

https://de.ffxiah.com/forum/topic/45830/killer-instinct-the-beastmaster-compendium/125#3563052