Forum:Solemn warning vs valhalla

Hi~ i know solemn warning can not negate valhalla's special summon if its already on field aka successfully activated and resolve~ but i want to know if solemn warning can negate the activation of valhalla or not?

solemn warning card text is (when a Spell Card, Trap Card, or monster effect is activated that includes an effect that Special Summons a monster(s))

if solemn warning can negate starlight road, it should be able to negate solemn warning as well ,right？ Xiangtan (talk • contribs) 05:56, April 5, 2016 (UTC)