The new Star Spawn Hulk from Mordenkainen's Tome of Foes has the following property:
Psychic Mirror. If the hulk takes psychic damage, each creature within 10 feet of the hulk takes that damage instead; the hulk takes none of the damage. In addition, the hulk's thoughts and location can't be discerned by magic.
Imagine that two Star Spawn Hulks are standing within 10 feet of each other. In addition, a player character is standing inbetween them, and decides to hit one with his Longsword of Deal Exactly 1 Psychic Damage.
Did the player just commit suicide?
Explanation: A hulk redirects 1 psychic damage and reflects it to all nearby creatures. The player takes 1 psychic damage. The other hulk redirects 1 psychic damage and reflects it to all nearby creatures. It seems to me like an infinite loop now occurs until the two Hulks are no longer within 10 feet.
But is this correct, by RAW? Obviously RAI it is not, but it seems to me like RAW, this would be the case.