Zoroark GXs insane draw power makes it easy to pair with a variety of Pokemon -- Golisopod GX, Garbodor (both Trashalanche and Garbotoxin), Oranguru, Lycanroc GX, Gardevoir, Weavile, Shiftry GX, Banette GX
They tried four different things and ended up stealing an ability from another card
There is quite literarily no logical reason whatsoever not to always be playing ranked and strictly speaking you are far more likely to meet opponents of your skill level in ranked play, then playing in non-ranked play where you are just matched up with whoever is available as opposed to someone in your current rank
The only problem with Mount Doom is it costs life to make mana, so you don't really want to draw it early
There is no other way to obtain the Sylveon promo directly unless you head to secondary markets and buy the card outright