In a campaign I am running our Psion has come up with an unusual technique in the outdoors. He uses his SHAPED CONSCIOUSNESS to create a shard 10 squares up and 10 squares across(burst 10) then uses MINOR CREATION to create a chest or axe another 5 squares directly up. Then gravity drops it on his head. This chest or axe drops 75 feet on his head. So far I have given him +2 to attack roll and falling damage. Thats alot of damage at 75 feet. Thats 7d10 if I do it that way. Any suggestions?