Alsei, the Sylvan High Protector

2 Level 8 monsters Once per turn: You can declare 1 card name; excavate the top card of your Deck, and if it is the declared card, add it to your hand. Otherwise, send it to the Graveyard. If a card is sent from your Deck to the Graveyard by a card effect (except during the Damage Step): You can detach 1 Xyz Material from this card, then target 1 card on the field; place that target on either the top or bottom of the Deck. You can only use this effect of "Alsei, the Sylvan High Protector" once per turn.

Plant LIGHT XYZ Monster 8 xyz