If an activated ability has a restriction on its use (for example, Activate this ability only once each turn), the restriction continues to apply to that object even if its controller changes
They arent uniquely powerful but deserve to be here on flavor grounds alone
The Pokmon cards in the upcoming Sword & Shield - Brilliant Stars expansion include Arceus Vstar - the god Pokmon - Charizard Vstar, Shaymin Vstar and Whimsicott Vstar
The wraiths are exiled copies of creatures in your graveyard, and thats already good enough with good ETB creatures
As a Legendary Pokmon, it is encountered as a roamer, a unique mechanic that requires players to track it across the region
Thats really useful because it doesnt take up any Spell & Trap Zones that youd normally want to use for defensive cards or powerful Spell Cards like Raigeki or Allure of Darkness