Is it possible to animate still pictures in motion?

So I watch a YouTube channel that does really cool animations but the original art is from still images on cards for example here: know the applications they use but I have apple motion so I would rather not go and spend more money if I can use apple motion instead. If so though where can I find tutorials to do all this stuff?

Thanks for any replies and help!

Edit (For some reason won't let me link to the exact part so in the YouTube video go to the time 39:00 where it shows a crazy guy with a hand held chainsaw thanks!)

you can for sure animate stills in Motion (masking + moving 'parts').
But…
Your example with the chainsaw-guy - that's not an animated still, but a video-grab from inside the game…

To have a YT video start at a specific point add "&t=39m00s" to the link. (or "&t=2340s".)