Its the perfect way to preserve your collection for years to come
In GLC you play a 60-card deck, but you can only use one type of Pokmon (Fire, Water, Grass, etc.), you can only use one copy of each uniquely-named card (for example, you can only use one Pikachu card, not multiple copies of different Pikachu cards), and all rule box Pokmon like V/GX/EX, etc
Like creatures and enchantments, they hang around on the field after being cast, can have static, triggered, or activated abilities, and tend to die to removal
It also gave you some strong graveyard synergies such as Living Death, Buried Alive, Wonder, Brawn, and Mortivore
Kopala, Warden of Waves If you want to protect your merfolk, Kopala, Warden of Waves gives you a great typal-support card
I knew my opponent as a person as he is a very good player with top-4 achievements before and he was playing law