A few other examples are Drudge Skeleton Swamps (picture of a Swamp, text of a Drudge Skeleton), Wald (a German Forest with the picture of a Plains), Serra Elemental (a Serra Angel with Time Elementals picture), and ManaTroll (Manabarbs with Sedge Trolls picture)
Going to be an interesting shift for this deck I feel
Its the only possible way to open foil Double Masters borderless cards, each pack containing two of them
Its not going to stay cheap forever, though
Looking for that final piece of pixie dust from reveal season
However, you can solve this problem with Voltaic Key since it allows you to untap Time Vault, take an extra turn, repeat it infinitely, and basically win the game since your opponent will have no chance to play