Opposition Agent + Hive Mind + Mana Severance + Selective Memory

Opposition Agent

Hive Mind

Mana Severance

Selective Memory

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 Selective Memory by paying 3.
6. Hive Mind triggers, causing each opponent to create a copy of Selective Memory.
7. Resolve each opponent's Selective Memory, exiling the rest of each opponent's library.
8. Resolve your Selective Memory, exiling no nonland cards from your library and shuffling your library.