+7.5-15% Weak Spot Damage. Weakspot Kills also ignore Enemy Hit Mass.
Up to +5-20% Strength based on the charge time of your heavy attacks. Stacks 3 times.
+5-6.5% Strength for 3.5s on Close Range Kill.
+7-10% Strength for every 4 Single Target Hits. Lasts 2s and Stacks 5 times.
Standard shovel is always the best shovel. My favorite weapon, versatile in all situations. Light attack to finish things off and a good fast heavy attack pattern of Strike down -> Cleave -> Repeat lets you deal with elite packs as well as hordes....and shovel go bonk.
MK V Heavy Stubber with lots of ammo and close range damage for when all hell breaks loose.