houndoom ex pokemon card price M Houndoom-EX - BREAKthrough #22 & Value ($22.43) You may discard all Fire Energy attached to this Pokemon Pokemon XY Breakthrough M Houndoom

They basically allow you to use all of your Instant and Sorcery spells twice with no hassle

Glittering Stockpile A 3-mana rock that turns into a riff on Red Mana Battery

Wear // Tear and Serenity is for permanent-based hate cards like Leyline of the Void and Grafdiggers Cage (I like having a split as Serenity is better against artifact decks like 8-Cast but Wear // Tear is a more efficient answer specifically for hate cards), and Massacre is for white-based hatebears

All Vehicle cards are noncreature cards when they are not crewed, enabling you to cast Vehicles from the top of your library, and with flash to catch your opponents off guard