Standard Cubes are a lot easier to create, balance, and play, but if you want to start getting really weird / creative with your friends, there are many many options out there
For Tyvar's last ability, you may return any creature card with mana value 2 or less from your graveyard to the battlefield, even if it wasn't one of the three cards milled as the ability resolved
There will also be a dedicated tournament area, where the community will be able to compete and win different prizes
Sealed products are attractive because they are unopened, collectible, and can contain desirable cards
Quite frankly this game feels the most cash grabby of the bunch because this is the only original concept in the bunch, and it sucks because the original idea was Yu-Gi-Oh