Sadly, the values of the Japanese version of the Terastal Fest ex set seem to have dropped quite a bit since release
Activate only if you've completed a dungeon
Prioritize fit and synergy over sheer stats or popularity
#1 - NO RARITY IS THE 1ST EDITION PRINTING OF THE JAPANESE BASE SET Pokemon cards were released and printed by Media Factory in Japan on 20th October 1996 Prior to release, advertisements, print and media showed cards with no rarity symbols Many of the cards contain errors: Venusaur, Charizard, Raichu and Gastly Before no rarity was mainstream collectors noticed the difference as far back as 2000 Media Factory would not print cards with errors after already having the correct versions The above information helps prove that no rarity was the first edition or the first wave of the Japanese Base Set
Once you dilute that ratio, you might find yourself stuck without the mana you need or with the wrong half of your deck in your opening hand
Many such cards like Entomb and Chrome Mox got their ticket to Arena through a Limited event, or Arena Anthology, or show up very infrequently like a Special Guest that earn a pre-ban so as to not shake up any pre-existing legality
