Three colour design is open but not wide open
For four mana, you can make each player draw seven new cards while you get to draw an additional card
Burning Abyss is all about sending cards to the Graveyard, which is especially good when paired with Archetypes like Phantom Knights
Utvara Hellkite Utvara Hellkite is a monster of a card, basically because its token generation ability has no drawbacks, conditionals, or additional costs
The LGS I call home actually did a kickstarter to try to get some renovations done while they had to be closed, and I did my best to help out with it
We use regular [easyazon_link identifier=B01BRGTWOA locale=US tag=maminthenow0e-20]3-ring binders[/easyazon_link] for our Pokemon cards and the [easyazon_link identifier=B005JCL05I locale=US tag=maminthenow0e-20]plastic sheets[/easyazon_link] you may have used for your childhood collection of baseball cards