A Gift of Understanding

Enchant player
Enchanted player has no maximum hand size.
At the beginning of enchanted player's upkeep, that player draws 7 cards, discards 7 cards, adds {7} to their mana pool, sacrifices 7 lands, exiles 7 permanents, reveals 7 cards, gains 7 life, and Scry 7 in a random order.
{0}: Sacrifice A Gift of Understanding