Looks good. My version is a bit more grindy oriented. I call your version "1 Drop Markov". Sure its not full of one drops, but the idea is the same. Looks very solid and well though. Scapethought is a nice idea in general.
Cloudstone Curio is basicly your recursion thing. You could try annointed procession instead for more board. Such a strong card. And can be tutored as well.
Bloodcrazed Paladin is a great card and I do think it works great in your deck. Again it is kinda anti removal protection, as you get a big creature if they whipe, it has "haste", if you play it end of turn and gives you instant
jump blockers. Not too sure about the
shimmering grotto. Way better lands exist. Maybe go down a little on the basic lands. All fast lands are great additions to your deck, same with Kamigawa Legendary land cycle. Westwale Abbey is another great "sac out", board protection, mana sink and so on "on a land". Lastly I would run a
Blade of the Bloodchief. Great weapon and synergizes great with your build (sac outs, cheap, punishes removal, and blocks)
I like to run my version in an unknown meta. So I got answers for everything, including free removal if someone wants to combo and stuff. Win percentage is really high. And I just love the concept. I can go aggro, but just not reliable.
https://deckstats.net/decks/11741/894008-edgar-markov if anyone is interested