Level VI: Demon's Lair

Roll 1d10
1-3 - Do nothing.
4 - Sacrifice all lands, creatures, and artifacts or
put a 2/4 token on the battlefield (+3)
5 - Put a 4/5 token on the battlefield (+6)
6-7 - Destroy your best creature or
you take 6 damage
8 - Destroy best artifact, enchantment, or land
9 - Exile your best creature or roll Encounter (+3)
10 - Roll an Encounter (+4)