Espinas, also known as the Thorn Wyvern, is an incredibly powerful species of flying wyvern that spends much of its time asleep within its territory. Infamously, its shell is so tough that it can simply sleep through most creatures' attempts to attack it, while its thorny exterior envemons the same would be attackers. Should a determined or dangerous foe cause it to stir, however, it flies into a murderous rage that can quell even Elder Dragons. It was first introduced in Monster Hunter Frontier Season 2.0.

Tier: High 6-C |High 6-C |High 6-C |High 6-C

Classification: Flying Wyvern, Thorn Wyvern |Flying Wyvern, Brown Thorn Wyvern |Flying Wyvern, Thorn Wyvern |Flying Wyvern, White Thorn Wyvern

Powers and Abilities: Superhuman physical characteristics, bodily weaponry (Via its horn, jaws, foot talons, thorned carapace, and a spiked tail), rage power (It becomes incredibly strong and fast when enraged, even more so than a typical monster), sound manipulation (Its roar can briefly stun hunters), large size (Type 1 by length; a typical specimen is around 20 meters long), flight (It possesses two heavily armored wings that it can use to fly despite its weight), breath attack (It can spit poisonous, paralyzing fireballs from its mouth), fire manipulation and explosion manipulation (It can spit explosive fireballs from its mouth), poison manipulation (Its bodily thorns and fireballs inflict poison on foes, damaging their health over time), paralysis inducement (It's fireballs temporarily paralyze those they had hit),  status effect inducement (It's thorns and horn can inflict poison, while its fireballs inflict fireblight, poison, and paralysis), resistance to poison and fire|All base abilities, minus paralysis inducement but plus:

•Stronger explosion manipulation

•Acid manipulation (Monsters that can inflict Defense Down typically do so via biological acid)

•Statistics Reduction: It can inflict Defense Down, a status that weakens one's defenses, and Silked, a status that reduces one's movement speed)

All base abilities, plus:

•Stronger Poison Manipulation (It possesses Extreme Poison, a far more virulent version of poison that can kill hunters in seconds)

•Smoke Manipulation (It can create lingering poison clouds)

All base abilities, plus:

•Stronger fire manipulation and poison manipulation

•Air Manipulation (Its stomp attacks produce tremendous gusts of air that can damage hunters and reposition its patches of fire and poison)

Attack Potency: Large Island level (Fully capable of going toe to toe with a Kushala Daora, who exerted this much energy dispersing a snowstorm)| Large Island level (Can clash head to head with a Teostra)|Large Island level |Large Island level

Speed: Massively Hypersonic+(As an Elder Dragon-level monster, it should be able to keep up with the likes of Kirin)|Massively Hypersonic+|Massively Hypersonic+|Massively Hypersonic+

Lifting Strength: At least Class 100, likely far higher (As an Elder Dragon-level monster, it should be above the likes of Tetsucabra, who can lift boulders in excess of 50 metric tons with its jaws)|At least Class 100, likely far higher |At least Class 100, likely far higher |At least Class 100, likely far higher

Striking Strength: Large Island level|Large Island level |Large Island level |Large Island level

Durability: Large Island level |Large Island level |Large Island level |Large Island level

Stamina: Superhuman (Able to fight for days)

Range: Several meters with physical attacks, Tens of Meters with projectile attacks

Standard Equipment: None notable

Intelligence: Average (Has an unremarkable reaction to Dragon Element), High for Espinas Rare Species (Has an weaknesses to Dragon Element)

Standard Tactics:

•Rage State: In combat, Espinas alternates between two states: standard and enraged. It begins encounters in its standard state where its attacks and movements are sluggish. After receiving enough damage, it transitions into its rage state, bright red blood vessels now visible through its skin. In its rage state, it becomes much faster, much stronger, and able to chain it's attacks more fluidly. It's rage state lasts for several minutes before petering out and it must again receive a certain amount of damage to return to its rage state.

Weakness: Ice Element |Water Element |Ice Element |Dragon Element

Notable Attacks and Techniques:

•Horn Rush: Espinas lowers its head, charging directly at its opponent to try and gore them with its poisonous nose horn. This attack is particularly dangerous. In its rage state, it can turn on the spot to redirect itself up to twice more.

•Full Swing: Espinas swings its neck, dragging its head over the ground while crawling forward to throw off nearby foes and poison them. In its rage state, it can perform this move twice in a row, repositioning between each attempt.

•Fireball: Espinas spits an orange violet fireball, burning, poisoning, and paralyzing its victim on impact. If a foe is immobilized by this attack, Espinas follows up by leaping and crushing them with its claws. In its rage state, it is capable of spitting three in quick succession rather than one.

•Tail Slam: Espinas slams its heavy tail on the ground, striking foes behind it.