It seems like I'm really becoming more convinced that the Avengers Doomsday Movie is an adaptation of the "Avengers the Children's Crusade" comic, where Billy and Tommy are looking for Wanda in Latveria with Dr. Doom, And I'm sure Ghost Rider will appear in the MCU because in episode 3 Mephisto was confirmed to really exist in the MCU, and also Jen in the comics is a member of the Midnight Sons where Ghost Rider is also one of the members
Agatha grew a dandelion... of course she did. I mean, those little bastards will grow ANYWHERE and they are damned near impossible to kill. Plus... kids love playing with them (and rabbits? they ADORE them! mmmm, om nom nom nom)