The opponent played Parade Leader and Darkmoon Diligable with Animated Broomstick on board, the Darkmoon Diligable got buffed by Parade Leader and killed my minion.
I killed the broom with a Netherspite Historian and used the Cabal Acolyte then Wave of Apathy combo. The Parade Leader became a 1/3 but the Darkmoon Diligable became a 3/2, forcing me to steal the Parade Leader.
The buff from Parade Leader is a straight buff, not an aura, so this shouldn’t be the case.
I couldn’t catch the moment because in game because I wasn’t expecting it.