Consume Corpse seems to be able to miss despite 100% accuracy. Debuffs were an enemy Cyclone and the DoT from Make it Rain, the weather was Cleansing Rain. Nothing that should affect hit chance. The target, Spawn of G'nathus, had died to Cyclone damage on the backline at the end of the precious turn...

Hello! Much like everyone else here, I'm looking to do 50 battles for the pet. ^^

My Battletag is Arkynos#2125, and I can be on to do the matches basically whenever you want.