At only 2 mana to activate, Scrying Sheets makes for the perfect mana-sink to save for an opponent's endstep, right before you untap to reap the benefits of your newly-drawn Snow card
Then, participants will build a deck with any of the cards from their Prerelease Pack, including their promo, and compete in three Swiss rounds
Sure, instant would make it a whole lot better and put any interest left in Terminate to bed but if you really want some instant removal play a Doom Blade or a Lightning Bolt as well, it's not like your ever going to not play the Dreadbore
If the development process here doesnt seem particularly interesting to you, just use a mana curve calculator to find the ideal land count for your deck
Prismatic Geoscope ( MC ) - If you care about getting to 10 mana (and you probably do), getting this into play gets you there