All it needs are 3 crit hits to evolve, no experience required. Though I wonder how the anime will handle this.I don't think just one battle will trigger evolution
I don't want it to evolve just by one battle.
Ash's Farfetch'd has a battle spirit congruent with Ash and we have seen that it refuses to give up even when it's almost defeated. Such a natured Pokemon shouldn't evolve right after winning a single battle.I prefer if G-Farfetched evolves now so we can get his first Gen-8 Mon.
We have the source, so should be fine. Hoefullly get official confirmation soon , hate spedulating wether something is fake or not when we have a clear source posted.Whoops, I've only gone and created a page for this episode on Bulbapedia