MARVEL MIGHTY HEROES
Venom is now available to purchase in the Marvel Mighty Heroes app:
From the app's Facebook page -
Buy 5 @ 5000 4 spins + One Guaranteed 4 Star Venom: Classic5x Rate 4 Star Spider-Man: Black & 3 Star Spider-Man: Classic
From May 8 at 4:30 PM PDT until May 11 at 4:30pm PDT
[Thanks to Troy for the tip]