Seek Bolas's Counsel — Mystery Booster Playtest Cards 2021 #98

Choose one at random —

• You get an emblem with "At the beginning of your upkeep, pay . If you don't, you lose the game."

• Each player discards their hand.

• Planeswalk to Pools of Becoming. (Once there, you can roll the planar die only if you're playing Planechase.)

• For each opponent, exile cards from the top of their library until you exile a nonland card. You may cast those cards without paying their mana costs.

• Destroy all creatures and non-Bolas planeswalkers.

• You get an emblem with "You can cast nonland cards from your sideboard."