We have a lot of fun exploring these places
This card will shine most prominently in non-singleton formats like Explorer, allowing the player to run multiple copies of Fog in their deck, recurring the effect as many times as they can cast copies of the card
This gets even stronger with the included Baxcalibur (Paldea Evolved), which allows you to attach any amount of Water Energy from your hand to your Pokemon during your turn
Unfortunately for people looking for a quick n' easy evaluation, the answer is a frustrating "it depends," because it really depends how often your opponents are casting two or more spells per turn
If you had a token doubler like Doubling Season or Elesh Norn, Mother of Machines then you'd get even more stacks
Tell us how it fared for you over on our Discord - I feel it does seem a little weak to hand disruption