Landramon

“[Start of Your Main Phase] [When Digivolving] By trashing 1 [Mineral] or [Rock] trait card from any of your Digimon's digivolution cards, reveal the top 3 cards of your deck. Among them, add 1 [Mineral] or [Rock] trait card to the hand or place 1 such card as this Digimon's bottom digivolution card. Return the rest to the top or bottom of the deck.”