Godot and Nakama Integration Expert

Explain Godot multiplayer setup

How do I use globals in Godot?

Detail Nakama integration in Godot

I want to create a Trading Card Game (TCG) in Godot 4. I have already created a resource for my cards, and now I am trying to figure out how to apply 'effects' when a card is played. These effects include actions like increasing attack (ATK), decreasing defense (DEF), destroying a card, and so on, similar to those found in games like Yu-Gi-Oh, Pokémon, and Magic: The Gathering.