Similar to that of the sealed product, however, this trend is a reflection of market attrition less so than it is one of increased demand, making the Gaeas Cradle (and other hidden gems within, such as Yawgmoths Will) behave like more traditional collectible products offered by Magic - less support than sealed product, but with enough support to sustain long-term growth
Counter your opponents spells, then play a giant dumb dragon that helps you find more awesome stuff
Cost, strength, willpower
Here are some tips on how to get the most money for your surplus Pokemon cards: Do your research: Before you sell your Pokemon cards, it's important to know how much they're worth
The most valuable non-Eldrazi card to open so far is Tamiyo, Inquisitive Student // Tamiyo, Seasoned Scholar