Like most Magic: The Gathering cards, the value of Skybeast Tracker depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Wilds of Eldraine)
The commons and uncommons in Set Boosters tell little stories, and there's always the chance of opening a card from The List
There were indeed readers interested in the financial fate of the coveted Ugins Fate promo alternate art Ugin, which we shall refer to as Blue Ugin from now on, as Ugin looks like he was in cahoots with Heisenberg in Chris Rahns art
By considering the use of highly efficient spells, asymmetrical effects, modal effects, and effects that synergize with your deck, you should be able to gain card advantage even when wrathing away the board
Meanwhile Warehouse Tabby is an ironically named Black cat who creates Rats any time an enchantment goes into a graveyard
2 Mana is for grizzly bears, signets, and the best ramp