If you control no monsters, or only Xyz Monsters: You can Special Summon this card from your hand, and if you do, Special Summon 1 "Exosister Elis" from your Deck. You cannot Special Summon monsters the turn you activate this effect, except "Exosister" monsters. If a card(s) moves out of either GY (except during the Damage Step): You can Special Summon from your Extra Deck, 1 "Exosister" Xyz Monster, using this face-up card you control as material. (This is treated as an Xyz Summon.) You can only use each effect of "Exosister Martha" once per turn.
![Exosister Martha [POTE-EN025] Secret Rare](http://tokenmtg.com/cdn/shop/products/30fcbe94-d785-5474-98ac-d785308ed5a4.png?v=1696981038)
![Exosister Martha [POTE-EN025] Secret Rare](http://tokenmtg.com/cdn/shop/products/30fcbe94-d785-5474-98ac-d785308ed5a4.png?crop=center&height=430&v=1696981038&width=430)