Treacherous Terrain [The List] Mouse but it reminds my visitors

but it reminds my visitors who really holds the power here

Whenever Hungering Hydra is dealt damage

where X is 7 minus the number of cards in that creature's controller's hand

Set: The Lord of the Rings: Tales of Middle-Earth Commander Type: Legendary Land Rarity: Mythic T: Add W

He called his creations "centaurs" and unleashed them unto the wastes

Treacherous Terrain [The List] Mouse but it reminds my visitorsSet: The List Type: Sorcery Rarity: Uncommon Cost: {6}{R}{G} Treacherous Terrain deals damage to each opponent equal to the number of lands that player controls. Basic landcycling {2} ({2}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)