Laboratory Maniac + Thought Lash
Produces: Win the game


- Color identity
- U
Prerequisites
It is the endstep before your turn.
Steps
- Move to your turn.
- At the beginning of your upkeep, Thought Lash triggers.
- Choose not to pay for the Thoughtlash trigger, sacrificing Thought Lash.
- Thought Lash triggers, exiling your library.
- Move to your draw step, winning the game.
How to execute this combo
The "Laboratory Maniac + Thought Lash" combo takes 5 steps in order. Make sure you have the mana open and permanents listed in the prerequisites before you start — opponents can respond between steps.
The end result: Win the game.
Practice the line offline: lay out the cards, walk through each step, and note where you can lose the combo (summoning sickness, lack of priority, removal on a key permanent). In game, announce each step clearly; in casual play you can offer to shortcut after demonstrating the loop.
The best window is a turn when opponents are tapped out or after they commit a spell — hold protection (a counter, Vexing Shusher) if the combo wins on the spot.