Charles, The Ace of Spades

Luck 3(At the beginning of your upkeep, Draw a card, if that card has converted mana cost of 3 or less, you may play it without paying its mana cost. otherwise, put it into your hand.)
When Charlie, The Ace of Spades enters the battlefield, Draw X cards, then deal Y damage to target creature or player, where Y is the total converted mana cost of the drawn cards.
You have no maximum hand size