mtg you can have any number of cards Rules Text: target players, 21 Idea for White's first "a

Also much like 1 cost equipment, youre not hurting for options with well over one hundred 2 cost equipment

Elementals and nightmares together, I get

Flavor reasons

Foil Borderless Mythic Rare in 1% of boosters $9.49 US Shipping Only Due to export restrictions, this item may only be shipped to addresses in the United States, APO/FPO addresses, and Puerto Rico

The Planeswalker version, Nicol Bolas, the Arisen who can draw you two cards, deal ten damage to a Creature or Planeswalker, put a Creature or Planeswalker from any graveyard onto the battlefield under your control, and finally, exile all but the bottom card of a target players library

Still not a good buy at $1 IMO