There are a lot of ways to get around it right now, but it's still a really strong effect
There are 11 Water-type Pokemon that join the lineup in Triumphant Light, and while some stay floating around the kiddie pool, others make a bigger splash than youd expect
Some of the best Normal Spells allow you to Special Summon a monster from the deck
Abzan Beastmaster Abzan Beastmaster shines in a more toughness-oriented decks with lots of defenders, and probably in a Doran, the Siege Tower or Arcades list
Some ways to think it, but it always depends on your build and your board: If you dont have another Mothman in the deck, you should use Nessie first, because if you hit Mothman, you will not be able to have it on board
In competitive card game scenes, there's an important concept called card advantage, which can essentially be boiled down to which player in a game has access to more of their resources such as their deck