Cactus Game Design Message Boards

Does Gideon's 300 just set aside all of the heroes in your territory?  Or does it set aside your opponent's as well?

Gideon's 300
Set aside all Heroes in territory until end of battle. Protect Heroes in set-aside areas from harm.  If Gideon is in battle, Trumpets and Torches cannot be negated.

"In territory" means your (the one who's controlling the card) territory.

This is correct.  So if you attack with Gideon's 300, your heroes are set aside, and if you force your opponent to use Gideon's 300 (such as with a side battle card), your opponent's heroes will be set aside.