An esteemed fellow collector and E4 member has written a very detailed article about the FPO cards, which can be found here: FPO - For Position Only Cards Official Guide (Additional photo upload pending) Matchprint cards These cards were used for color proofing before their set officially went into print
As you open your Play Boosters, sort your cards by color, placing any multicolor, colorless, or land cards into their own piles
Iono became one of the strongest Pokmon TCG cards because it can win games on its own by disrupting an opponent at the perfect time
Oranguru helps to fill the role that Octillery used to, and so far I have liked the inclusion of this helpful orangutan
It doesnt look too exciting compared to other options, but I foresee this Room being one of the most-played in Commander when the dust settles
It produces mana when it comes down unlike a Signet and even in a mono-color deck, it can provide extra mana as you curve out without having to feed mana into it or have it come in tapped
