Blink [Doctor Who]

Set:	Doctor Who
Type:	Enchantment Saga
Rarity:	Rare
Cost:	{2}{U}{B}

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)
I, III Choose target creature. Its owner shuffles it into their library, then investigates. (They create a Clue token.)
II, IV Create a 2/2 black Alien Angel artifact creature token with first II strike, vigilance, and "Whenever an opponent casts a creature spell, this permanent isn't a creature until end of turn."