Conjuration effects (at least from powers) create an entity that fills a square. Allies can pass through, but enemies cannot. Also conjurations can't be attacked or physically affected.
So does this mean that something like the level 1 cleric daily power Guardian of Faith (creates a conjuration that attacks adjacent enemies) is the perfect block to prevent creatures from passing through a door or whatever? This seems unintended and too powerful. Short of teleportation, I don't see how you can get through. If the bad guys can't do this or don't have good ranged attacks, then this could be amazingly effective.
So does this mean that something like the level 1 cleric daily power Guardian of Faith (creates a conjuration that attacks adjacent enemies) is the perfect block to prevent creatures from passing through a door or whatever? This seems unintended and too powerful. Short of teleportation, I don't see how you can get through. If the bad guys can't do this or don't have good ranged attacks, then this could be amazingly effective.