Forum:MST vs. Field Spell vs. Field Spell

So I was dueling a friend, and he had Harpies' Hunting Ground, then I played Necrovalley, then he chained with MST, claiming that since Necrovalley was destroyed, Hunting Ground is still active. Is this correct? --NutterHead (talk • contribs) 19:39, July 30, 2011 (UTC)