
Flash (You may cast this spell any time you could cast an instant.)
Enchant creature
Enchanted creature gets +1/+1.
Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)
Eel Umbra has 6 printings, first in Rise of the Eldrazi (2010). EDHREC ranks it #5,833 among Commander cards. It appears most in Ivy, Gleeful Spellthief decks (3,385 on EDHREC). 2 public decks on TCG run it. It has 10 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.