Lady Dimitrescu

Evelyn, the Covetous
Flash
Whenever Lady Dimitrescu or another Vampire
enters the battlefield under your control, exile the
top card of each player's library with a collection
counter on it.
Once each turn, you may play a card from exile
with a collection counter on it if it was exiled by
an ability you controlled, and you may spend
mana as though it were mana of any color to cast
it.