Question about Deck Rules

[Eevee234]

I'm sorry if this is in the wrong place, but is it true that you could only have 2 types in your deck not including Colorless? You know... Fire, and Grass, but not Fire, Grass, and Water.

 

[PokePop]

No, there is no restriction like that.
Now, there are guidelines where people will recommend that you only have a few types in your deck so you have the right type of energy available when you need it, but there is no limitation in the rules.