When a "Sylvan" monster is sent to the Graveyard (except during the Damage Step): You can Special Summon this card from your hand. Once per turn: You can excavate the top card of your Deck, and if it is a Plant-Type monster, send it to the Graveyard. Otherwise, place it on the bottom of your Deck. If this card is excavated from the Deck and sent to the Graveyard by a card effect: You can target 1 "Sylvan" Spell/Trap Card in your Graveyard; add that target to your hand.
Excavates / Sends excavated cards to the Graveyard / Places excavated cards on the bottom of the Deck / Sends from your Deck to your Graveyard / Changes Deck order / Activates from your Graveyard / Returns from Graveyard to hand