White Knight and Pestilence Combo Lock

Step 1: Cast White Knight, ensuring it remains on the board.

Step 2: Cast Pestilence to control the board by dealing damage to all creatures and players.

Step 3: Use Stave Off to give White Knight protection from black, making it immune to Pestilence's damage.

Step 4: Activate Pestilence's ability repeatedly to clear the opponent's creatures, while White Knight remains unharmed.

Step 5: Continue to control the board with Pestilence, using White Knight for offense or defense as needed.