A card that I like in place of Cryptborn Horror is Rubblebelt Raiders. It is a little more expensive mana wise, but gets huge pretty quick. It would also qualify for revive if you so choose. Other good news is it only runs about $1.
Yeah Cryptborn Horror needs to go it's too unreliable.
Your land is slightly lopsided, the wrong way, why have more mountains when the split is equal but you have a double green and there are no double reds, currently.
Other than that, should be fairly decent. If only you could have more searing spear haha.