One of the upgrades to Refillable, Hunter's Potion gives sustain to junglers who have none and allows those that do to double up. In the past, we've had to rely on intrinsic sustain mechanics (miss u, spirit stone) that always skewed towards the damage dealers in the crowd. You'll have to pay for it, but grab this on champions without strong lifesteal/spell vamp options (*cough*Amumu*cough*) and you'll find yourself burning through the jungle much healthier than normal.
TOTAL cost : 400 gold
BUILD path : Refillable Potion + 250 gold
FREE REFILLS : Consume a charge to restore 60 health and 35 mana over 8 seconds. Holds up to 5 charges and refills upon visiting the shop.
DELICIOUS JUNGLE TEARS : Killing a large monster grants one charge
DON'T SPILL IT : Limited to one type of Healing Potion