Anything covered up in the augment process doesn't count, so ignore things to the left of the "metal bar" in the art of host creatures
Getting the full value from this white commanders enters ability requires a losing board state
Like most Magic: The Gathering cards, the value of Adarkar Sentinel depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Ice Age)
However, its not quite as cool as another Cinderella steel card thats seeing a ton of play right now
There just arent many cards like Embercleave or Torbran, Then of Red Fell than do that much damage out of nowhere (and both require a prior board presence)
Once you reach speed 4 youve reached your max speed and now creatures with the ability will get an extra bonus