how to tell rarity of mtg cards do I identify card sets? – TCGplayer.com The Rarities of Magic: All
Description
Code Red (and White and Blue and Black and Green) And that is everything there is to know about card codes

(3) That player can't be the target of spells or abilities

Spread out counters, slip through in combat, and reanimate creatures/vehicles from opponents yards

Rares appear roughly once per pack, and mythic rares about once every eight packs

[22] Turns follow a sequence of generating ink, playing cards, using actions from cards, and challenging opponents' character cards

If Vial Smasher the Fierce or Tymna the Weaver are good enough to be your commander, surely you'd want two copies, right
