Obviously, Teferi protects itself, and untap your lands, so its easier to protect him with your spells, but also requires white mana
It wants you to cast spells with mana value 4 or greater, and as a mana dork, it helps you to get there on turn 3
And since both are Job Knight, you can search them with Duke Goltanna [1-134R] in Water/Lightning
The first of these in Elvish Rejuvenator, which as a three mana 1/1 is hardly inspiring
If you just want extra mileage out of your creatures (or to abuse cards like Whitemane Lion to their fullest, God-Eternal Oketra has you covered
They will contain one land card and you are guaranteed a foil card, though it may not be a rare card, and the rest are randomised between Common, Uncommon, and Rare or higher