Bored Dave

Each player roll a d20 in each upkeep.
•1-4 Sacrifice one creature.
•5-8 Steal one creature.
•9-12 Return one card from your graveyard.
{bull}13-16 Draw a card from a library.
{bull}17-19 Lose 10 life.
{bull}20 All permanents exiles except Dave.