ninetales pokemon card full art - 199/197 - Obsidian Flames - Illustration Rare Age Group Alolan Ninetales ex (Fantastical Parade

A deck can have any number of cards named Rat Colony

It's important to note that besides the banlists for specific formats, there are a number of cards that are universally banned across the board

Just do what's needed

(2016-08-23) A conspiracy's static and triggered abilities function as long as that conspiracy is face-up in the command zone

Hopeless Nightmare and Kroxa give the deck a burn angle for dealing the last points of damage

Tinkering with the way you get a Mox on the battlefield doesn't change the fact that playing it essentially puts you ahead on an entire turn's worth of mana, which is tantamount for decks entirely dedicated to trying to end the game on turn one