I use to have the game on this phone but now I can't figure out how to get it

mtgo does not have a phone app

you are prob thinking of either hearthstone or arena

Yea crap I worded it wrong mybad I was talking about mtga mobile

you can download it via steam or the standalone client. After that you just have to connect your account (apple if iphone or google if android) just use whatever google play or apple id you used on that phone.

if you mean you want it on your phone again but deleted it just look it up in the app store.

I can't I got a phone that doesn't have requirements but I found it online and downloaded it