Treacherous Terrain [The List] Mouse where X is 7 minus

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

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

{TK}{TK}{TK} — Infect (This permanent deals damage to creatures in the form of -1/1 counters and to players in the form of poison counters

Set: Mystery Booster Playtest Cards Type: Creature — Sliver Rarity: Rare Cost: {3}{W}{W} All Slivers have banding

Whenever Hungering Hydra is dealt damage

Treacherous Terrain [The List] Mouse where X is 7 minusSet: 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.)