is the effect of Aurkus, Lightsworn Druid as the below?
" "Lightsworn" monster cannot be targeted by effects. During each of your End Phases, send the top 2 cards of your Deck to the Graveyard. "
if it is so, wanghu's effect will destory him. Aurkus's effect states cannot be targeted. However wanghu's effect does not target monsters.