A stitcher's attempt at a skaab with a soul
If Endless Sands leaves the battlefield before you activate its last ability, the exiled creature cards are exiled forever (lost in the dunes, perhaps)
Right now, the textless pixel art Command Tower goes for around $38
To make this commander more effective, you can also consider other mechanics like madness or Fling variants, which will be very strong if you have a giant Brallin at your disposal
If you jump through too many hoops and spend too much time and mana putting a creature that gets answered onto the battlefield, then its pretty obvious that you would have been better off just casting spells that impact the battlefield from your hand
When that spell or ability resolves, the creature spell won't be countered, but any additional effects of that spell or ability will still happen