You can only use the (1) and (2) effects of this card’s name once per turn each.
(1) If there is a monster in your opponent’s field or GY and you control a WATER monster: You can take 1 “Icejade” monster from your Deck and either send it to the GY or Special Summon it.
(2) If a face-up “Icejade” monster(s) you control leaves the field by an opponent’s card, except by being destroyed (and except during the Damage Step): You can banish this card from your GY, then target 1 card your opponent controls; banish it.