Tate and Liza

[Magic_Umbreon]

I am curious when the choice of the effect of Tate and Liza is made.

If I have no benched Pokemon and play Tate and Liza, can I choose the effect of switching my Pokemon even though this would have no effect on game state or am I then forced to shuffle my hand into my deck and draw 5? What about if my hand and deck were empty aside the Tate and Liza card itself?

 

[PokePop]

You can't play a card in the Pokémon TCG for no effect.
We make rulings on how to do things right.
For what happens if you do something wrong, you'll have to call a judge at the event and they'll decide what the fix and/or penalty will be.