Even outside these combos, dealing free damage every turn makes it worthy of its value aside from the foil, retro border, and limited serial number
Edgar fits our depiction of Dracula as her first appears perfectly, and the card is the best depiction of a classic Vampire in Magic
Your opponent will waste a ton of time replaying their characters, and since most cards can't even act the turn they hit the board, youll be running laps around them
You can imagine a thousand uses for this in your artifact decks, like Oswald Fiddlebender, but its really annoying with odd decks like Merieke Ri Berit
In Vintage, Mana Vault is a great mana accelerant for Paradoxical Outcome, which can reset the Mana Vault, allowing for additional burst of mana in the same turn