Rootweaver Druid is a rare Creature — Elf Druid card from Commander Legends (CMR), collector number 684. Current market price: $0.87 (foil $1.58), TCGplayer market prices via Scryfall.
When this creature enters, each opponent may search their library for up to three basic land cards. They each put one of those cards onto the battlefield tapped under your control and the rest onto the battlefield tapped under their control. Then each player who searched their library this way shuffles.