How to remove Over tightened, almost rounded oil drain plug

Not sure if anyone else on here had this issue.. purchased a 2017 Impreza sport HB with 30,000 miles and was going to do the oil change myself and install the fumoto valve .. unfortunately the plug looked already kinda rounded and it slipped on my socket twice rounding it even more.. defs VERY tight .. any ideas on best way to remove the plug would be appreciated, thanks in advance. Wife has the car at work right now I will try to take a picture after she's home.

EDIT: Used a 14mm twist socket (bolt remover) on a breaker bar it was very effective and did the trick. I would recommend it however, just have a new bolt and crush washer ready.