Crest Priest of Shiranui

When this card is Regular Summoned: You can Especial Summon 1 Shiranui creature from your hand or Burial Ground,except Crest Priest of Shiranui,but exile it when it leaves the field. If this card is exiled: You can target 1 creature your opponent controls; destroy it. You can only use this effect of Crest Priest of Shiranui once per turn.