Wrenith, Ever Knowing

All players must pay 2 life for each color in
cards they cast.
{t}: Gain 10 life, scry 10, and then mill 10
cards.
Sacrifice Wrenith, Ever Knowing, shuffle
your hand and graveyard into your deck. Gain
1 life for every 2 cards being shuffled. Then
pay X life and draw X cards.