Most staples seem to be essential interaction like Effect Veiler (or Limited cards like Change of Heart and Monster Reborn), rather than busted midrange threats
High mana value MTG cards usually have powerful effects, but they also have a pretty intuitive tradeoff you cant use them until you have enough mana
While this isnt the most powerful ACE SPEC card out there (that title would likely go to one of the Twilight Masquerade releases, like Unfair Stamp), it does hold the potential to seriously hinder opponents who are reliant on Pokemon like Charizard ex for quick and easy damage
Wizards of the Coast has clearly learned a great deal over the years of running the game, it has developed into a far better game then I remember it being
Investment Guide Jellicent, known as the 'Floating Pokmon,' is a dual-type Water/Ghost Pokmon introduced in Generation V, with the Unova region being its birthplace