I'm going to go a little bit outside of the box here. That giant fucking Mufasa cloud from The Lion King. I know it's Disney, but the way the way the cloud billows up from nothingness to take up the entire movie screen in a swirling, glowing vortex. You can't tell me that isn't bad-ass. Plus, we're looking at a dude who can conjure the weather to do his bidding from beyond the grave and instead of giving his son a hand he rolls in, leaves a cryptic message an rolls out. He could have blown scar to fucking Egypt with a gust of wind and he just sat back and watched his son nearly die. What a cold motherfucker.
Also, James Earl Jones voice. Need I say more?