Flying, haste
This creature enters with X +1/+1 counters on it.

Defender
: This creature loses defender and gains "This creature can't be blocked."
: This creature becomes blue and has base power and toughness 5/4. Activate only if this creature doesn't have defender.
: Draw three cards. Activate only if this creature is blue and only once.

Flying
Whenever this creature enters or attacks, draw two cards, then discard a card.
Whenever you discard a card, target creature an opponent controls gets -X/-0 until your next turn, where X is the number of different mana values among cards in your graveyard.