WHY:Boneyard not
graveyard because it's cheaper and You need death quanta for the wall too, moreover You don't care if You mutate normal or elite skele, it doesn't matter;
Fire storm & lightning storm to kill opponent's creatures, lightning can be useful too if the oponent have many RoL's or phoenixes, also sometimes even that 1 hp enables otyugh to eat something crucial;
Hourglasses and sundials are very important to fasten the deck because it needs most of cards played to work properly, as for the amount I've tested many different combinations to come up with this, more glasses dont mak eany good but 2 is needed, sundials are good in any amount;
Eternity not to deckout of course and when played earlier can rewind skeles, must be played with
protect artifact unless You're perfectly sure that opponent cannot steal it nor destroy it or even freez it;
Steals to steal or resteal things;
Phase shield to shield and grab some time to draw important cards;
Quintessence twice to be cast on one(!) Otyugh and druid, as the are the very base of th edeck. Otygh is of course far more important in most cases, the main moment its otherwise i can recall now is fighting akebono;
Mindgate to extend decks abilities, it can be a real blessing when you get with it i.e. purify, steal, some shield or other spell, I heard it's unnecesary but IMHO it is better than any single card I could replace it with;
Feral Bond simply to regain life;
Otyugh to eat everthing that appears, what produces skeles which can be turned into something else by eternity or druid, and if necessary eaten again
;
Fallen Druid to mutate skeles and sometimes powerfull enemy krits i.e. akebono's dragons;
Bone wall because it protects even from the strongest hits and is infinite when working with otyughs AND storms do help much ;
WHY NOT:
Eagle's Eye is no good because the deck is to be set up to the last card ASAP, so You need eternity;
Firefly Queen is not in my deck because I think that it can manadge with only enemy krits, and this is one card less. But it's not very bad idea to reconsider, I just don't use it
;