Either way, this seems like it will often be a two-for-one that forces your opponent to deal with it before burning your face, and making them essentially "discard" two burn spells is a pretty big deal
The only real downside is that its ability exiles cards, so you need to be okay with a bit of risk when playing it
Perhaps the same questions college students here on our world ask every semester: What am I going to major in
On top of that, foils in 7th Edition were scarce, equating to about 1 rare in every booster box
It all comes down to you and what youre looking to get out of playing on MTGA
Additionally, Slimefoot causes each opponent to lose one life and for you to gain one life whenever a creature you control dies, synergizing greatly with the sacrifice-heavy strategies that are sped up by the disposable tokens Slimefoot can produce