Jasmine (Buffyverse)

Jasmine – played by Gina Torres – would be a very interesting opponent for the Avengers, as she has the potential to turn the entire world against them – and indeed get them under her control.

Her power – in addition to superhuman physical attributes – was that anybody who looked upon her immediately became under her thrall and was subsequently willing to do anything for her or to protect her.

She was also able to shapeshifte into a monstrous, tentacled form, in which she would consume people – something that went against her supposed plight for world peace – and it would be awesome seeing that form going against the Avengers and trying to eat them.

Whether or not she could control the likes of Thor, Hulk and Vision is currently unknown, but it would be cool to see the entire planet turning against the Avengers as they sought to defeat her – and even cooler to see them having to fend off each other if Jasmine got some of their heroic ranks under her mystical thrall.