Stick that on to a 4 mana (or 0 mana) 3/3 flash flyer that you can blink in response to creature / planeswalker spells for extra value (Ghostly Flicker) and you've got a nasty good card that is strong in any Blue-heavy deck and absurd in Blink decks
Its a 5/4 body with first strike for a total mana value of five, which is already pretty decent, but it also consistently creates tokens and can eventually become a way to draw cards
But if budget is no obstacle, I'd load up on tutors: 10 is a fine number, for example
Doomsday Doomsday is the weirdest card here, but its a powerful one-card combo
Belbe, Corrupted Observer Belbe, Corrupted Observer gives out free colorless mana for people dealing damage, up to 6 for you and 4 for your opponents
Enlightened Tutor : While not specifically card draw, this is one of the most powerful tutors in Magic, allowing the player to search for an artifact or enchantment and set up their next draw for just 2 mana