‘Epic’ demi-Boss Battle

yourplayersaidwhat:

Context: (This was from my first real session in DnD; I played a Paladin, High Elf) Halfway through exploring rocky cliff-sides and collecting weird mystical gems, our party came across a massive slab of cliff with a ledge. At the top we could hear possibly a necromancer chanting something at the top. So, two of our party members rolled high enough for stealth and climbed up… 

DM (ic): Both [Paladin] and [Ranger] stealthily scale the cliff side, undetected by the assumed-necromancer. Whilst keeping yourselves hidden, you spot a large cloaked figure towering over a gall of carnivorous baby birds. It appears their mother had been slain, and the cloaked figure is attempting to command the younglings. What is it you do?

Paladin (ooc): I want to cast Command on the Necromancer… [Rolls: N20] …and I whisper for him to Approach.

DM (ic): Excellent, you override the hooded man’s chant and force him to approach you suddenly. As he approaches with a fit, the fledglings are left unattended, and… [Rolls: 18]

DM (ooc): Are you kidding me? Really? 
Ranger (ooc): What is it? What did the Paladin just do?
DM (ooc): [Holds Head in Hands] ….
Paladin (ooc): …. (: 

DM (ic): [sigh] Against his will, the hooded man walks towards you… but is abrupt stopped when the sharp beak of one of the carnivorous birds pierces his spine. The other fledglings join in on the attack, and the mysterious man is brutal devoured by the hungry beasts! 
DM (ic):… all that remains are his tattered robes and a bright purple gem roped around his bloody, skeletal – once fleshy – throat.

Ranger (ic): [in shock] That was a bit much, even for you, [Paladin]. 

Paladin (ic): The word of the Gods knows no boundaries (: .

Ranger (ic): [Expressively Uncomfortable] 

DM (ooc): This was supposed to be a demi-Boss Battle, you twit. 
DM (ooc): You single-handedly brought down a very powerful necromancer by will of a sINGLE W O R D.
Paladin (ooc): …the word of the Gods’ is not to be trifled with, friend.