While these prices are only based on a few sales, the cheapest copy of the card on TCGplayer at the time of writing is for $82, and there are currently 14 listings on the site
While I'm not sure if both of these are the most efficient choices we could play, they had a definite synergy and seemed to work out well when we played them
The device simulated a riffle shuffling by extracting the cards through a slot at the bottom of each box and placing them in a pile in the middle
Choose your angle (complete set, favourite Pokemon, specific era) before you start spending
It gives you a nigh-impenetrable shield for a turn, giving you protection from everything until your next turn
I think valiant is a really fun ability, and we also got several ways to support it within the same creature type