Red offers incredibly powerful cards for cheap while black brings excellent removal and card draw
Ok Warrior of Light #17 (Magic Final Fantasy Through the Ages) Details Full Price Guide: Warrior of Light #17 (Magic Final Fantasy Through the Ages) All prices are the current market price
While a singular Bloom Tender or Jegantha in a minorly upgraded deck likely wont be too strong, slotting several of these of effects on top of improving the landbase and ramp and being able to generate 15-20 mana from fixers per turn is probably also too fast for our own servers BC environment
#10 Core Prowler Mirrodin Besieged, Uncommon Something of an oddity to start the list off with, Core Prowler is here almost exclusively because of its combo potential
But if someone builds their deck to do that intentionally, that's the no-no
Sliver decks have never had the best card draw within their creature base, opting instead for running the best of whats available in the five colors