As Null Chamber enters the battlefield, you and an opponent each choose a card name other than a basic land card name. Spells with the chosen names can't be cast and lands with the chosen names can't be played.
Discovered by Femeref mages, the Null Chamber is the ultimate testing ground for the uncreative.
Hexproof You can't cast noncreature spells. {2}: Nullhide Ferox loses all abilities until end of turn. Any player may activate this ability. If a spell or ability an opponent controls causes you to discard Nullhide Ferox, put it onto the battlefield instead of putting it into your graveyard.
Return target permanent to its owner's hand. Gotcha — If an opponent says a number, you may say "Gotcha!" When you do, return Number Crunch from your graveyard to your hand.
Enchant artifact or creature Enchanted permanent doesn't untap during its controller's untap step. At the beginning of the upkeep of enchanted permanent's controller, that player loses 1 life.
Put target creature card from an opponent's graveyard onto the battlefield tapped under your control, then exile that player's graveyard.
"In the embrace of the great Nurgle, I am no longer afraid, for with His pestilential favour I have become that which I once most feared: Death." —Kulvain Hestarius of the Death Guard
At the beginning of your upkeep, you may create a 1/1 green Squirrel creature token. Threshold — Squirrel creatures get +2/+2 as long as seven or more cards are in your graveyard.
"I'll call you Reginald, and you're Mimi, and you're Tank, and you're Bobo..."
Constellation — Whenever Nylea's Colossus or another enchantment enters the battlefield under your control, double target creature's power and toughness until end of turn.
"Those who seek my protection shall receive it." —Nylea, god of the hunt