Forum:Collossal vs necrovalley

i have "necrovalley" on the field i destroy my opponents "colossal fighter" by battle and neither of us have warrior type monsters in our graveyards except my opponent which is "destiny hero plasma"(which cannot be special summoned except..) so, when he is battle busted, since there are no other cards to be effected by his special summoning effect, only himself, would this effect still be effected by my "necrovalley"? since "necrovalley" only negates the external effects of cards that can affect other card(s) other than themselves in the graveyard, i thought so. whats the verdict? oh and we play TCG so that may make a difference.

mopprecciate it