This jungle is actually very similar to Amumu jungle (though it's a bit more tanky as you don't require ancient Wraith). I like his ganks a ton and his durability/damage later which is more easy to hit unlike despair which basically needs Amumu to hug the target for 4 seconds rather than Zac's which only needs him to be beside the target once to press W every 4 seconds.
Masteries:
9-21-0
Offense 9
1 Double Edge Sword
4 Sorcery
3 Mental Force
1 Arcane Mastery
Defense 21
2 Block
2 Enchanted Armor
2 Tough Skin
1 Unyielding
3 Veteran Scars
1 Bladed Armor
1 Juggernaut
1 Hardiness
3 Perseverance
4 Tenacious
1 Legendary Guardian
Runes:
9 flat attack speed marks
9 flat armor seals
9 flat AP glyphs (can also do scaling MR if enemy has many magic dmg dealers)
3 flat AP quints
