Rainbow Dark Dragon [SDSA-EN010] Common

Rainbow Dark Dragon [SDSA-EN010] CommonSet: Structure Deck: Sacred Beasts Card type: Effect Monster Rarity: Common Attack: 4000 Defense: 0 (This card is always treated as an "Ultimate Crystal" card.) Cannot be Normal Summoned Set. Must be Special Summoned (from your hand) by banishing 7 DARK monsters with different names from your GY. You can banish all other DARK monsters from your field and GY; this card gains 500 ATK for each card banished this way.

Set: Shadows over Innistrad Type: Creature — Spirit Rarity: Common Cost: {2}{U} Flying

Set: Ravnica: City of Guilds Type: Instant Rarity: Common Cost: {1}{B} Target creature gets -3/-3 until end of turn

You don't feel any different without it

but above all

Set: Alara Reborn Type: Creature — Zombie Rarity: Common Cost: {4}{U}{B} Fear (This creature can't be blocked except by artifact creatures and/or black creatures

The Conclave stands united

Set: Magic Origins Type: Enchantment Rarity: Mythic Cost: {2}{B}{B} At the beginning of your upkeep

intuiting each other's next move

Set: War of the Spark Type: Sorcery Rarity: Common Cost: {2}{R} As an additional cost to cast this spell

where X is the number of cards in your hand minus 4

Set: Odyssey Type: Instant Rarity: Common Cost: {B} Exile target card from a graveyard

"Slivers are guided only by simple instinct