- Game Breaker:
- Conductor Rod in Arcanists before it was nerfed.
- In Armies of Gielinor, it used to be possible to block the opponent's portal by parking a flying unit on top of it—potentially locking them out of summoning units for the rest of the game if they lacked a ranged unit to attack it. Portals have since been updated to deal damage to enemy units that camp on top of them.
- Those with a decent knowledge of mathematical theory may realize Tetralink, like any connect-4 variant, is mathematically solvable and you can guarantee yourself a 100% win rate with the appropriate guides.