A greater pit fiend

a greater W-X Y from Z

You are fighting a greater W-X Y from Z.

A strange and misshapen creature rises out of the pit and accepts your challenge.
Your opponent attacks ...

Hit messages:

The Y throws you into the fires of Z. damage + (fire) damage
The Y freezes you like the deepest circles of Z. damage + (ice) damage
The Y throws up the horns and channels some W-X lightning down to you. Huh, apparently the horns are very conductive. damage + (electric) damage
The Y hits you with a ball of W-X energy that burns like acid. On second thought, that might have just been acid. damage + (acid) damage
The Y's madness begins to take its toll on you. damage + (psychic) damage
The Y challenges you to a rock off. It rocks too hard because it's not a mortal man. damage + (sonic) damage

It hits you for X damage.

Critical hit message:

Your opponent has a critical hit! It hits you for X damage.

Miss messages:

The Y tries to throw you into the fires of Z, but you were forged in the fires of Twilight.
The Y tries to freeze you, but there's some confusion as to whether the deepest circles of Z are hot or cold.
The Y throws up the horns, but its W-X powers seem to be lacking.
The Y challenges you to a rock off, but you rock its socks off.
The Y's madness begins to take its toll, but you take a jump to the left then a step to the right.
The Y whips up a ball of W-X energy, but you deflect it back. You never know what W-X energy will do.

Fumble messages:

Your foe fumbles! It takes X damage.

Victory! You beat up your foe and win the combat!

You gain (level * 8) - (level * 10) experience.

You got an item: infernal claw (23%)
You got an item: infernal claw (23%)
You got an item: infernal claw (23%)
You got an item: fiendish skull (24.7 ± 2.3%)
You got an item: smoldering ash (4.2 ± 1.1%)
You got an item: Abaddon charm (Ultra-rare)

Known resistances/weaknesses

see notes.

Randomly has three sets of hit/miss messages.
50% resistant to either fire, ice, electric, sonic, acid, or psychic damage, chosen randomly.
Appears to scale to your stats, including hidden stats such as damage bonus etc.
XP scales from level*8 (inclusive) up to level*10 (inclusive). See more details in talk page.
The name of this monster is randomly generated. It is composed of the following parts:

Abaddon charm drops when the name is "a greater freak-tesque fiend from the inferno".

The electric hit and miss messages refer to the Sign of the horns gesture.
The psychic hit and miss messages refer to song "Time Warp".
The sonic hit and miss messages refer to the epic rock-off at the end of Tenacious D in The Pick of Destiny.