Ok ill start with the land. 25 land in a deck allways feels excessive to me. Normally the decks im playing run on 20 or less mana. i just use creative ways to compensate for this. I will explain a lil more later.
I would most likely pull all three shimmering grotto. Why pay one mana for a mana of any color when your only playing 2 colors. an option here would be orzhov guild gate. It comes into play tapped but you dont have to pay one mana to effectively use it.
Haunted Fengraf produces only colorless mana and its ability is so so at best. if you get this land in a opening draw it would hurt you really badly. especially if its the only land you draw. So ide kick it to the curb like last weeks girlfriend.
Onto the creature business.
Ok so my philosphy for white is that its strong on getting rid of artifacts and enchantments, in addition to having powerful early attackers. I mention this because the pride guardian feels awkward to me. If your playing a creature heavy deck and plan to win by attacking. Why not cast a small white 1/1 with a random ability. I would most likely throw in a dutiful thrull or a tundra wolf for a second turn attack.
Now for the spells.
Disentomb seems kind of weak in this deck. how many large creatures will you be able to bring back to your hand late game? I feel that pulling this and adding another creature of some sort may be a better idea.
Mires toll is a bit off. Here is why your oppoent gets to choose 2 cards. So if you play it first or second turn he will most likely show 2 cards he doesint mind losing. As for late game your opponent should have a empty hand depending on their strategy. So if you can only play it on your turn then it might be waste of a draw. Or swap it for duress.
I like evil presence as a sideboard card. Load up 4 of them in a match against a non black deck and you will limit their available mana. As for main deck. Not to sure. Im sure some other smaller creatures would be more help with getting creatures out. Ive allways liked the blood pet.
Thats my input. So just by looking at the cards ide say more small creatures with abilities that have helpful abilities.