Remember that in white, your card draw is a lot better than it used to be, but that isnt a reason why you cant run a Cryptic Caves or other sacrifice land that draws a card
The folks in Seattle have invented a few ways to mitigate the A/B problem of Aura:creature ratios in your deck, but we could use quite a few more
That is to say, extra copies of cards that were supposed to be there as one-ofs
Duosion's endurance across generations can be attributed to its unique evolutionary line and the strong competitive presence of its final evolution, Reuniclus
cards, the value of Marauding Captain 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 (Structure Deck: Warrior's Triumph)
This should give you even more opportunities to get rid of junk low value cards, or just sell custom boxes for fun