Skithiryx, the Blight Dragon [The List] IDW Comics 2013 Set: Mystery Booster Type: Artifact

Set: Mystery Booster 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

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A deck can have any number of cards named Rat Colony

Set: Commander 2014 Type: Creature — Goblin Artificer Rarity: Rare Cost: {R} {T}: Choose target artifact a player controls and target artifact card in that player's graveyard

Set: Odyssey Type: Instant Rarity: Rare Cost: {B} Search your library for a card and put that card into your graveyard

Skithiryx, the Blight Dragon [The List] IDW Comics 2013 Set: Mystery Booster Type: ArtifactSet: The List Type: Legendary Creature Phyrexian Dragon Skeleton Rarity: Mythic Cost: {3}{B}{B} Flying Infect (This creature deals damage to creatures in the form of 1 1 counters and to players in the form of poison counters.) {B}: Skithiryx, the Blight Dragon gains haste until end of turn. {B}{B}: Regenerate Skithiryx.