Its a great place to have an hour of video gaming (at a great price) while listening to trading and conversation
Blocking your opponent from playing any Item cards or Pokemon Tools from their hands by just having this Pokemon in the active is going to be very, very deadly in certain deck strategies especially stall decks focused on locking your opponent out of making any significant moves
If the attacking pokemon is killed during this state it cannot revive and all future or past evolution cannot be used
it's a Pokmon that players can encounter relatively early, providing a powerful Psychic-type option without having to wait too long in their journey
However, the new Mythical Island set spices this up
However, since you don't know how many energy card your opponent has, sometimes this card might not be useful, but its still worth trying to use it to put your opponent in a difficult situation