Infinity

Target player reveals cards from the top of his or her library until X land cards or Y cards are revealed, where X is the highest converted mana cost among permanents they control and Y is half their life total, rounded up, whichever comes first. That player exiles all cards revealed this way. You may cast cards exiled this way as long as you control an enchantment creature with lower power than the creature on the battlefield with the highest power and you may spend mana as if
it was mana of any colou