Possibility Storm + Arcane Laboratory
Produces: Players can't cast spells from their hand, Lock
- Possibility Storm
- Arcane Laboratory
- Color identity
- UR
Steps
- Whenever a player casts a spell from their hand, Possibility Storm triggers, exiling that spell and causing that player to exile a different card from their library that they would normally be able to cast.
- Arcane Laboratory prevents them from casting that card or any other spells this turn.
How to execute this combo
The "Possibility Storm + Arcane Laboratory" combo takes 2 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: Players can't cast spells from their hand, Lock.
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.