Worldfire
Hive Mind
Vampiric Tutor
Najal, the Storm Runner

   Prerequisites

What do I need to start this combo?
Hive Mind and Najal on the battlefield.
Worldfire and Vampiric Tutor in hand.
6 available

   Steps

How does this combo work?
1
Cast Vampiric Tutor by paying .
2
Hive Mind triggers, causing each opponent to create a copy of Vampiric Tutor.
3
Holding priority, cast Worldfire by paying 6.
4
Hive Mind triggers, causing each opponent to create a copy of Worldfire.
5
Resolve each Worldfire on the stack, exiling all permanents, all cards in all hands and graveyards, and setting each player's life total to one.
6
Resolve the first opponent's copy of Vampiric Tutor, causing them to search their library for a card, put it on top of their library and lose 2 life.
7
The opponent loses the game due to having less than zero life.
8
Repeat from step 6 for each remaining opponent.

   Results

What do I get from this combo?
Each opponent loses the game
Exile all permanents
Near-infinite lifeloss
Mass Land Denial
Exile all cards in hands and graveyards