That is normally a criteria by which I will permit gold cards into the cube but I think the gains from Helix are so marginal on average that it would be like running Oboro, Palace in the Clouds in the cube
The two-drop Sliver has a Replicate cost of 1G, allowing players to pay the cost any number of times to create a copy of Hatchery Sliver
You may put any number of Aura cards with mana value X or less from among them onto the battlefield
For starters, it's quite possibly the biggest crossover that Magic: The Gathering has ever seen, but the increased price compared to similar sets would have contributed too, as fans were upset upon discovering that the Final Fantasy set is priced closer to premium products, despite being Standard-legal
The Elven ring will have 3000 of the former and 300 of the latter, the Dwarven ring 7000 and 700, and the Human ring 9000 and 900 each