Familiar creatures are a broad grouping, so deck design might be a little difficult at first, but since youre in three colors you have plenty to choose from

So she every much fits into the GW pie Ephara - She basically is a tweaked Rhystic Study or Smothering Tithe which is fine bu ti do agree with the non land and caring about your opponent thing will fix that but i do want it a bit more unique than your standard tax card Medomai- I assume other than the devoion power/toughness thing you dont have a problem with him Kruphix - i can agree that cards for and indestruable card is powerful maybe busted but again he is mythic rare and a god those two things together you would expect some bust things about it BUT i can see spiraling way to out of control will think but nerfing the draw Kydele - Her effect is for THE END OF THE TURN, Not the beginning and you than have a choice of untapping three land so you have access to outer spells or other creature protection on you opponents turn or having that card in hand that you've probly already scryed and want in your hand the flexability is what makes nice and you may not always want to draw in case you're milled out out lose life if you draw niche in the grand scheme of thing but a useful to have

Since their release, Textured foils have been released in other sets like Dominaria United, with legendary creatures getting the treatment, and they returned in Commander Masters
That's some lovely board wipe protection - if your opponents don't have another wipe waiting, it could easily see you taking the game
While you'll need to pay a bit more than a standard pack, the bonuses make for a nice consolation if your pack luck isn't very good
A query like Blue + Creature + Mana value 1-3 + Commander legal surfaces the small flying threats every blue deck wants