In addition, there is the consideration that things within the game itself may remove the ability of PCs to generate particular effects, either temporarily or "permanently", including (but not limited to):
				
			- Sunder
 - Rust Monsters
 - Disenchanters
 - Spellthieves
 - Confusion effects
 - Level Draining effects
 - Stat Draining effects
 - Wish/Alter Reality effects
 - Expenditure of charges
 
				