Unfazed Koishi

{3}{r/w}{r/w}{r/w}: You may cast this card as a Legendary
Creature with 4/20 instead of paying its
Enchantment mana cost.
When you cast this card, draw two cards. If you
cast this card for the X-th time, you may reveal
X-1 cards from any player's hand. That player
discards the revealed cards. When this card goes
to your graveyard, shuffle your deck and place it
under its top two cards.