If you bring a creature to the battlefield during the opponent's turn (for example, Teferi Mage of Zhalfir), and the cunning opponent phase it out, Teferi will phase in at the beginning of your untap step, and you can attack with it during the same turn
Its important to note that the activation cost of this ability costs one less to activate for each vampire under its owners control, making it a stellar choice for Vampire Commander decks such as the ever-popular Edgar Markov
Even the Magic: The Gathering cards you dont think of can be worth a fair amount
This made me think, are there any other solid color cards like these
Being able to control what cards you get is really helpful, especially early on, and getting the right song at the right time could really change the pace of a game - plus, if you get a high cost song, you can easily sing it next turn once her ink is dry