The Queen, Mirror Seeker is a four-cost card that has some pretty good stats: with its two willpower and five health making it surprisingly beefy for its relatively low ink cost
You simply pay the cost in their upper-left corner, before doing what the text says and putting the card in your discard pile
If you said Skin Shedder, thats both incorrect and mildly concerning
If you have a Commander with a brutal attack trigger, giving your threat Indestructible along with a weak creature on your opponents side, then blowing up everything else can be a huge swing in your favor
Of course, the "artifact creatures you control have menace" is a cherry on top for a deck that churns out giant artifact creatures every turn
Red Elemental Blasts instead of two of the Counterspells speaks to the power imbalance that existed in the early days between colors