Forum:Rai-Oh vs High Priestess

Can Thunder King Rai-Oh negate the special summon of High Priestess of Prophecy when she uses its effect of summoning itself by showing 3 Spellbook cards from the hand?

Is it an inherent special summon or its an effect?, because if it is an effect then Rai-Oh cannot negate it. Thanks in advance. Jaggo 80 (talk • contribs) 15:23, December 11, 2012 (UTC)