That's limited to once per turn, but that's fine and dandy, just like candy
But between you and me, Im glad they didnt go this route
This means a card can serve double duty: play it as a Character on your turn, or pitch it from hand as a counter on defense
Up first is a Mardu list that is derivative of the deck I registered (and unfortunately did not get to play) at #SCGPC: Creatures (12) Planeswalkers (4) Lands (25) Spells (19) This list contains all the most powerful cards to pair with Dark-Dwellers in a shell that makes sense for the card, so it is definitely the most promising to me
Jetmir, Nexus of Revels and Jinnie Fay, Jetmir's Second are the other commanders that get the reversible Secret Lair treatment
The sculpture is a replica of the first edition Mew card from the acclaimed card game