angel mtg cards Aurelia, Exemplar of Justice Boros ANGELS Commander Deck Magic Ready-to-Play Retro fantasy style Angel of the Ruins -

It is a 3 cost blue enchantment that allows you to draw a card each time an opponent casts a spell, unless they pay 1 mana to stop you doing so

I was going to use near blank cards like Darksteel Relic or Spellbook as my example of a blank card but the issue there is that you can have all sorts of uses and synergies for those things and that all rather muddies the waters

If you like Heroes and the possibility of tribal play, this ones for you

It was reprinted once in the Streets of New Capenna Commander subset, but it remains in low supply, which became a problem in November when Fire Lord Azula gave players another way to copy all their spells

At the top of this category, we have the out and out cheapest answers that deal with the most permanents