Two major gameplay mechanics for Ursulas Return have been revealed so far
It's all to do with the high number of legendary creatures in UB sets like TMNT, in particular, the appearance of legendary creatures at low rarities, which means the Legend Rule (dictating you can only have one copy of a legendary card on the field) rears its head way too often and starts causing some serious deck-building issues
Its growing popularity makes it a safe long-term collectible as well as a gameplay staple
It gives your opponent the power to tap it down, and also builds up your lands with the ability to rummage them away as card draw
While this will limit the effectiveness of Gandalf the White somewhat, theyre still definitely powerful
So, what happens here is that Slaking can be an excellent attacker by combining with Arceus VSTAR and Path to the Peak because, suddenly, you are forcing your opponent to draw a counter stadium or, otherwise, all their VSTAR Pokmon are going to go to the discard pile