Chamber Sentry [Guilds of Ravnica] Conflux Promos "My specialty is theoretical universal

"My specialty is theoretical universal limits and ways to circumvent them

Set: Beta Edition Type: Instant Rarity: Rare Cost: {U} Change the text of target spell or permanent by replacing all instances of one basic land type with another

Exile up to two creature cards put into graveyards this way

The land is ever resilient

Chamber Sentry [Guilds of Ravnica] Conflux Promos "My specialty is theoretical universalSet: Guilds of Ravnica Type: Artifact Creature Construct Rarity: Rare Cost: {X} Chamber Sentry enters the battlefield with a +1 +1 counter on it for each color of mana spent to cast it. {X}, {T}, Remove X +1 +1 counters from Chamber Sentry: It deals X damage to any target. {W}{U}{B}{R}{G}: Return Chamber Sentry from your graveyard to your hand.