Mythweaver Poq

Mythweaver Poq's power and toughness are each equal to the number of lands you control. Whenever one or more nontoken lands enter under your control, for each of them, conjure a duplicate of it onto the battlefield. This ability triggers only once each turn.

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6o73uj49ippb1hm5ficv8g.