You can only use this card name’s 1st and 2nd effects each once per turn.
(1) If you control an “Exorsister” monster: You can Special Summon this card from your hand, then, if you control “Exosister Stella”, gain 800 LP.
(2) If a card(s) leaves any GY(s) by an opponent’s card: You can Special Summon 1 “Exorsister” Xyz Monster from your Extra Deck, by using this card you control as material. (This is treated as an Xyz Summon.)