The deck looks a lot better since I last saw it. If you drop Xenagos, 2
retreat to kazandu and both
chandra's fury then the deck will be at 75 and can also run faster cause you'll have less high drops to worry about drawing. Also the deck will play faster and still maintain the aggressiveness of having wolves. Also keep in mind; if a creature FIGHTS another creature their ability words such as FIRST-STRIKE do not apply (so you won't hit first, damage is dealt simultaneously). Try it at 75 cards and if you can
shrink it down to 70 that would be good too.
Howlpack resurgence is god to have because your werewolves will all get +1/+1 stronger AND they'll have trample. It's a good combat trick to play since the enchantment also has
flash. Last card I'll recommend is
obsessive skinner. Once you have
delirium you can keep growing your humans every turn. Best part is this, even when the humans transform they KEEP their +1/+1 counters. So your human werewolf that is
instigator gang [2/3] with four +1/+1 counters on it (putting the creature at 5/7) could theoretically become a 9/9 creature (because it turns into a 5/5 and keeps the counters).