Greetings all - 

I'm really digging the Undead Warlock, particularly its potential for Death Knight related goodness. In building upon that, I'd appreciate any input on the following new Eldritch Invocation, to bump up the possibility of adding some 'Tankability.'

Eldritch Armor

Prerequisite: Pact of the Blade

When you gain temporary hit points due to a Warlock Class Feature, the amount is doubled.

For clarity, this would provide a max of 26 temporary hit points at 3rd level ((1d10+3)x2), and 40 temporary hit points at 10th level. Given that temp hit points don't stack, this doesn't feel overpowered...

This is building upon the Undead Warlock's Form of Dread ability - 

Form of Dread

1st-level Undead feature

You manifest an aspect of your patron’s dreadful power. As a bonus action, you transform for 1 minute. You gain the following benefits while transformed:

• You gain temporary hit points equal to 1d10 + your warlock level.
• Once during each of your turns, when you hit a creature with an attack, you can force it to make a Wisdom saving throw, and if the saving throw fails, the target is frightened of you until the end of your next turn.
• You are immune to the frightened condition.

You can transform a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a long rest.

The appearance of your Form of Dread reflects some aspect of your patron. For example, your form could be a shroud of shadows forming the crown and robes of your lich patron, or your face might transform into bat-like features due to your vampire patron.

(cross posted to the Warlock forum as well...)

Eldrich armor should have a level requirement imo, maybe level 5 when the large HP pool isn't so noticeable?

Form of Dead needs a number for the saving throw and possibly limited to melee attack as it seems strong at range.

Quote from DGwar >>

Eldrich armor should have a level requirement imo, maybe level 5 when the large HP pool isn't so noticeable?

Form of Dead needs a number for the saving throw and possibly limited to melee attack as it seems strong at range.

 the form of dread is a offical patron feature (not even ua its in sword coast) that was here for reference so please forward you comments on that to wotc 

otherwise i agree with you and also the invocation should not be limited too pact of the blade it has no effect or relience on the pact 

Quote from stuffattackknightofrandom >>

Quote from DGwar >>

Eldrich armor should have a level requirement imo, maybe level 5 when the large HP pool isn't so noticeable?

Form of Dead needs a number for the saving throw and possibly limited to melee attack as it seems strong at range.

 the form of dread is a offical patron feature (not even ua its in sword coast) that was here for reference so please forward you comments on that to wotc 

otherwise i agree with you and also the invocation should not be limited too pact of the blade it has no effect or relience on the pact 

 Holy shit, really?

Nvm that's unearthed arcana, idk where you're seeing it in sword coast. The Undying is official and doesnt have that feature.

The Undead Patron is still UA, although it's being supported on Beyond... so it's likely to stick around, although there may be changes.

Quote from Bishop69 >>

The Undead Patron is still UA, although it's being supported on Beyond... so it's likely to stick around, although there may be changes.

 Based on how abusable the fear is with a ranged weapon i see it being changed very quickly.