card sleeve maker Dunwell Business Holder Sleeves (10 Pack for 200 Cards), Heavyweight Plastic Sheet Protect, Each Holds 20 2x3.5 Namecards, 3-Hole Punched, Fits 3-Ring Binders : Office Products Our sleeves offer both style and durability Custom Card Maker - Etsy

The set numbering has changed a little, you can see this change in the main set version of this Mickey

Depicting the Mega Evolution mechanic that had just been introduced in the Pokmon X and Y video games, these cards were even more powerful than ordinary Pokmon-EX

An Obstinate Baloth or similar creature enters the battlefield as a replacement effect from the discarding from Smallpox

Supreme King Z-ARC debuted in Maximum Crisis and is back with a vengeance in Age of Overlord

Its possible that some time in the future of Standard the mana dries up and we see mono-colorless or close to it pop up, or a single card gets printed that makes a deck in an Eternal format tighten up its mana, but odds are until more sets are printed with this mechanic, mono-colorless isnt much more viable than it is now

TCGs are a lot of fun, but they can be a little intimidating in terms of just how much is going on and what mechanics need to be properly understood