Forum:Stupid Field card ?

This is going to be a dumb question but I want to put this to rest with someone I've been argueing about, If I have a field spell card on the feild face up, Is it possible to use Terraforming and destroy my preveous field spell card with my new one? I was certain you could not destroy your own field card spells. Coltman66 10:03, March 27, 2010 (UTC)