Syr Konrad, the Grim + Triumph of the Hordes + Inverter of Truth

Syr Konrad, the Grim

Triumph of the Hordes

Inverter of Truth

How it works

1. Cast Triumph of the Hordes by paying 2, giving creatures you control +1/+1 and infect until end of turn.
2. Cast Inverter of Truth by paying 2.
3. When Inverter of Truth enters the battlefield, it triggers, exiling your library and then shuffling your graveyard into your library.
4. Syr Konrad triggers for each creature card that left your graveyard this way, giving each opponent that many poison counters.
5. Each opponent loses the game due to having ten or more poison counters.