More of the Sylvan cards from LVAL have had their TCG names revealed.
The Sylvan Field Spell Card is called “Mount Sylvania”. The peas, mushroom and leaf monsters are “Sylvan Peaskeeper”, “Sylvan Komushroomo” and “Sylvan Marshalleaf”, respectively.
Mount Sylvania
You can send 1 Plant-Type monster from your hand or face-up from your side of the field to the Graveyard; choose 1 “Sylvan” card from your Deck and place it on top of the Deck. You can only use this effect of “Mount Sylvania” once per turn. Once per turn, during your opponent’s End Phase: 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 either the top or bottom of your Deck.
Sylvan Peaskeeper
When this card is Normal or Special Summoned: 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 level 4 or lower Plant-Type monster in your Graveyard; Special Summon that target. You can only use this effect of “Sylvan Peaskeeper” once per turn.
Sylvan Komushroomo
When this card is flipped face-up: You can choose a number from 1 to 5, then excavate that many cards from the top of your Deck, send any excavated Plant-Type monsters to the Graveyard, also place the other cards on the bottom of your Deck in any order. If this card is excavated from the Deck and sent to the Graveyard by a card effect: You can target 1 Spell/Trap Card on the field; destroy that target.
Sylvan Marshalleaf
When this card is Normal Summoned: You can choose either 1 or 2, then excavate that many cards from the top of your Deck, send any excavated Plant-Type monsters to the Graveyard, also place the other cards on the bottom of your Deck in any order. If this card is excavated from the Deck and sent to the Graveyard by a card effect: You can target 1 monster on the field; destroy that target.
Source
https://yugiohblog.konami.com/articles/?p=5808
