sideboard has 16 cards

You know, one card to consider even though your creatures often find their way out of the graveyard is Boneyard Wurm . It could get pretty beefy when used in conjunction with your troll.

Are you sure you should be running logic knot, over let's say, mana leak, or more remands, I dunno

I think Logic Knot is way better than Mana Leak in this deck, because we can scavenge our instants and lands in the graveyard to counter even in lategame where you can't use Mana Leak efficiently. The problem could be the two blue manas in mana cost, that is why we have 5 fetches, but further testing will be needed.

Boneyard Wurm is not a bad idea, but it does not fit the picture of the deck: Self reanimating creatures with protection spells like Remand and Abrupt Decay and with some grave engine like Grisly Salvage and Lotleth Troll .

Nice! +1 what do you think about Zombie Infestation and maybe some Grave Scrabbler ? You could also put Dark Withering in the sideboard unless you think you have better removal. Oh and Rotting Rats could be nice. If you add cards lile those zombies you could do Necromancer's Stockpile

You know I don't think it is :/

Nice deck man +1. I have seen Craterhoof Behemoth Run well with graveyard decks especially with your low-power creatures. If the mana is to high, try using Victimize or Unburial Rites to cast early game.