Visions of Insanity

At the beginning of your upkeep and whenever you draw a card, put a charge counter on Visions of Insanity.
At the beginning of your upkeep, exile cards from your hand equal to the number of charge counters on Visions of Insanity.
{b}{r}, Sacrifice Visions of Insanity; Put all cards you own from exile into your hand. Until end of turn, you have no maximum hand size.