Much like HC Gravios appears to just be a older version of standard Gravios, the same goes for HC Black Gravios. Though unlike normal HC Gravios the insides of this monster are burning hot like magma to the bone and it needs to vent heat more often to keep its temperature in check.
It has all the attacks of normal HC Gravios and uses the super beam attack more often along with new attacks. New attacks include making use of the pores on its tail to release flaming hot gas and sleep gas in a tail slam attack and the amazing ability to keep its self in the air while flying using its beam aimed straight down like a rocket to keep its self in the air while spinning, ending with a body slam and releasing the heat from the ground that it beamed as magma from burning the ground. This odd ability makes it the only Gravios variation that actually uses its wings for an actual flying attack instead of a jump smash.
In-Game Description
Monster Hunter Freedom 2 / Monster Hunter Freedom Unite
A large wyvern found in volcanic zones. They possess a fiery breath attack and the ability to emit a sleeping gas. They also have extremely hard scales that deflect most weapon attacks.
A Gravios subspecies distinguished by a hard black carapace that allows them to contain their own extraordinarily high internal temperatures. They sometimes discharge this thermal energy as an extremely powerful heat ray.
Threat Level (危険度): ★★★★★
Monster Hunter Stories
This subspecies has a tough, black carapace. It is capable of discharging powerful blasts of heat.
Monster Hunter Frontier G
(?)
MH4U Breakable Parts
Head (x1)
Belly (x2)
Back (x1)
Right Wing (x1)
Left Wing (x1)
Right Leg (x1)
Left Leg (x1)
Tail (Sever)
Notes
General Notes
Black Gravios are accustomed to using their beam attacks more often than their grey counterparts.
Black Gravios' roar requires HG Earplugs to block.
Its roar when becoming enraged only requires Earplugs.
Monster Hunter 4 Ultimate
When low on stamina, it will fail to shoot beams, produce gas, and will take longer to recover from attacks.
In G-rank, Black Gravios can shoot heat beams at random targets and release fire gas while walking.