Endless Fantasy Game

I've been trying so very hard
To play my cards right with you
I think there is only one card
That will do

I've not had to play it yet,
But I think that time has come
I'll raise you on your bet
Something my friends say is dumb

You don't know what it could be
Maybe you'll give it a try
I think you'll agree
That it could help you and I

I choose to play the card
Let us begin
You never let down your guard
I am playing to win

I try to make you fold,
But can never call your lies
It's like you wear a blindfold
That covers up your eyes

The time has come
I'm ready to go all in
I'm afraid of the outcome,
Because you could possibly win

I show you my hand
You show yours next
This is becoming a fantasyland
Something perplexed