The former approach is harder to counter, and, in a stroke of thematic resonance, gives each individual Knight token a shot at Commander glory
You won't exile Kaya or lose 2 life
Have a Treasure token generation build with Tireless Tracker and The Reaver Cleaver and token doublers like Primal Vigor to have enough artifacts for Straxs abilities
Teferi, Who Slows the Sunset $4.67 / 3.37 6 printings 5 / 6 Teferi, Who Slows the Sunset Legendary Planeswalker Teferi Innistrad: Midnight Hunt#245mythicHeonhwa $4.67 / 3.37 Foil$3.75 / 4.44 +1: Choose up to one target artifact, up to one target creature, and up to one target land
Weakness: Lightning (x2) Resistance: Fighting (-30) Retreat: 0 Thanks goes to Bangiras and JustInBasil for the translations
I think this is much less likely to happen than a simple rebalancing of rewards, but its the only solution that would completely eliminate the feels bad moment of pulling a high rarity card that you know youll never use