Each prototype card has two sets of characteristics
These are the kinds of cards that pay off lifegain in Golgari, just like your commander
With Crucible of Worlds being very powerful in lands matter, Omniscience being well played in decks favoring lots of high mana cost spells, and part of a few low-efficiency combos, overall, the mythics in the set hold a lot of value, and if you pull the right ones, make returns well worth it
Four-mana ramp is a vacation

Surge's Spearow (83) #83Common $0.88 Spearow #92Common $0.70 Spearow #62Common $0.36 Spearow #94Common $0.55 Spearow #130Common $3.46 Spearow #81Common $0.79 Spearow #81Common $0.54 Spearow #61Common $0.39 Spearow #74Common $0.32 Spearow #62Common $0.38 Spearow #78Common $0.17 Spearow #65Common $0.15 Spearow #97Common $0.05 Spearow #145Common $0.22 Spearow #111Common $0.10 Spearow #21Common $0.12 Spearow #21Common $0.07 Spearow #55Common $0.18 Spearow #39Common $0.50 Spearow #45Common $0.35 Spearow #52Common $1.25 Spearow #66Common Spearow - 052/063 #52Common $0.09 Spearow - 074/063 #74Art Rare $2.24 Spearow - 102/132 #102Common $0.02 Spearow - 151/132 #151Illustration Rare $4.52 Spearow - 2007 (Jun Hasebe) #61Common $0.76 Spearow (Master Ball Pattern) #21Common $10.78 Spearow (Poke Ball Pattern) #21Common $0.30 Spearow (Master Ball Pattern) #21Common $10.78 Spearow - 151/132 #151Illustration Rare $4.52 Spearow #130Common $3.46 Spearow - 074/063 #74Art Rare $2.24 Spearow #52Common $1.25 Lt

Acid-free sleeves and top loaders can help protect the cards from physical damage and prevent them from yellowing over time