Forum:Van Daly and Forced Back/Drastic Drop Off

If you read Van'Dalgyon the Dark Dragon Lord effect, it stated i can special summon him if i activate a counter trap. The thing is, can i special summon him if i activate Drastic Drop Off or Forced Back because they dont negate spells,traps or effect monsters effects? Thanks. The 8th Monarch 00:21, December 22, 2009 (UTC)