Unfortunately, this is a pretty expensive deck to make compared to some of TCG Pockets other decks, mainly because you need so many EX and high-rarity Pokemon, so be prepared
Etali's effect is a simple one, exiling the top card of each opponent's library whenever Etali attacks
If any of those Faeries have double strike or first strike, the ability will trigger once for each player dealt damage in each combat damage step
I believe that WotC's current financial results strongly suggest that the overall answer is No. Yet I also believe that we cant think about Magic as a single game (as it was 30 years ago): modern MTG is more like a collection of different games that happen to share game pieces, and some of those games are more welcoming to new pieces than others
It maintains the characteristics of the main spell in any zone other than the stack
But the majority of old cards, the commons, the non-holos, the gold Burger King promos, are worth a few dollars, no matter how old they look