Opposition Agent + Hive Mind + Mana Severance + Mind Grind

Opposition Agent

Hive Mind

Mana Severance

Mind Grind

How it works

1. Cast Mana Severance by paying 1.
2. Hive Mind triggers, causing each opponent to create a copy of Mana Severance.
3. Resolve each opponent's Mana Severance, searching their libraries for all land cards, exiling them and shuffling their library.
4. Resolve your Mana Severance, exiling no lands cards from your library and shuffling your library.
5. Cast Mind Grind by paying 1.
6. Hive Mind triggers, causing each opponent to create a copy of Selective Memory.
7. Resolve each opponent's Selective Memory, revealing the rest of each opponent's library then put those cards into their graveyard.
8. Resolve your Selective Memory, revealing your cards until you reveal one land card from your library then puts all revealed cards to your graveyard.