The math works out to around 41,300 total uncommon copies of Oasis printed in total, and 31,000 total common copies of the Arabian Nights Mountain printed in total, making the common Mountain a little more rare overall
If a "Z-Fighter" monster(s) leaves the field by your opponent's card effect while you control this face-up card, you can add 1 "Super Saiyan Transformation" from your deck to your hand
Walking Ballista is the easiest payoff creature to disrupt, as the loop cannot proceed without first resolving Heliods activated ability or some similar lifelink-granting effect
Dont forget Wizard Class or Spellbook to achieve infinite hand size so you dont have to discard any cards
The Tag Team GX cards (Charizard & Reshiram GX, Arceus & Dialga & Palkia GX) and Venusaur & Celebi GX created a meta-defining finale that still holds up
Cards with the letter D cannot be used in sponsored competition and most local stores' tourneys, so to be safe, make sure to build decks with the letter E and F when playing in stores