Strategy: Play cheap, tough cards like Yoked Ox (0/4 for 1 mana).  Sacrifice them to add +1/+1 counters to Scourge of Skola Vale.  Once they are in the graveyard, they can be used to cheaply cast and activate Nemesis of Mortals.  Use Kalonian Hydra to double the number of +1/+1 counters on all my creatures.  For non-creature spells, focus on those with multiple targets and those that increase toughness or the number of +1/+1 counters on creatures.  Include some card draw to increase the chances of getting a useful combo, and include a bit of mana fixing. This deck is vulnerable to enemy spells, so include some hexproofing (note: hexproofing is currently sideboarded).  Hopefully the opponent will use up some spells on the sacrificial cards.

Should take a closer look at Ordeal of Nylea.  And should definitely add Solidarity of Heroes!