
Artifacts and enchantments you control have shroud. (They can't be the targets of spells or abilities.)
Fountain Watch has 2 printings, first in Mercadian Masques (1999). EDHREC ranks it #15,693 among Commander cards. It appears most in Rune-Tail, Kitsune Ascendant // Rune-Tail's Essence decks (347 on EDHREC).
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.