Just Proxy It If you want a cheap option just to have these cards for laughs, or for your casual decks (read: NOT tournament play), then buy them as proxies
Best 5 Color Token Commanders (Sliver Queen and Najeela, the Blade-Blossom) Sliver Queen, while best known for its role in dedicated Sliver decks, is actually able to generate infinite tokens really easily outside that shell
Unless your opponents have removal, you can practically soft-lock their combat strategies out of the game and teach them to respect the power of mono-white
Omniscience (WOT-070) - Wilds of Eldraine: Enchanting Tales (Borderless) Omniscience (WOT-070) - Wilds of Eldraine: Enchanting Tales (Borderless) Wizards of the Coast This item is like new, pulled from a sealed pack
If you're not, you'll have to take a little more effort, but nothing will be "hidden" look at the result list for prices, keeping in mind that some entries may stray from the average (or have comments further explaining in what ways this card differs from what you would expect) and may need to be discarded in the interest of a truly representative result Following this method, you should have a good idea of how this card is being traded, and apply your individual judgement of fairness to it
No waiting weeks
