Sliver Hive [Magic 2015] Judge Gift Cards 2007 at the beginning of each

at the beginning of each of your upkeeps for the rest of the game

As long as your devotion to white and black is less than seven

I think 'toast' is an appropriate description

(They can block and be blocked only by creatures with shadow

Might Type: Artifact Rarity: Rare Cost: {5} Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it

Sliver Hive [Magic 2015] Judge Gift Cards 2007 at the beginning of eachSet: Magic 2015 Type: Land Rarity: Rare {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a Sliver spell. {5}, {T}: Create a 1 1 colorless Sliver creature token. Activate only if you control a Sliver.