The Mortal Poison
The Mortal Potion is a potion, granted by Hades, originally purposed to drain the immortal lifesource of Hercules, for the purpose to kill him on his mortal phase. It also appears in more occassions, in the villain tournaments context, usually serving other purposes, rather that it's use from the original film.
The Mortal Poison, granted by Mok Swagger, as seen in the first round of Disney vs. Non-Disney Villains War.