
Enchant creature
Enchanted creature gets +1/+1 and has "Whenever this creature deals damage to an opponent, you may draw a card."
Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)
Snake Umbra has 8 printings, first in Rise of the Eldrazi (2010). EDHREC ranks it #1,533 among Commander cards. It appears most in Tannuk, Memorial Ensign decks (6,466 on EDHREC). 3 public decks on TCG run it. It has 12 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.