Archfey bladelock help

Hey I'm currently playing Wild Beyond witchlight campaign with some mixed in homebrew. We're currently level 6 but last night we level up twice due to some hard encounters and puzzles in the Feywild. So im looking for advice on my character. Im a Eladrin Fighter 1/ Archfey Warlock 5 bladelock with pact of the chain, agonizing blast, magic int. And thirsting blade. At level 4 i took warcaster increasing my cha. My current pact weapon is a longsword. What would the best path for a teleporting striker build ? Going for a Alucard/ Nightcrawler playstyle. Any advice is welcome ! Thank you. 

I assume you are carrying a weapon and shield since you are using a Longsword, so I would recommend the usual suspects for a Bladelock  - Thirsting Blade, Devouring Blade, Eldritch Smite, and Lifedrinker.

If you don't have another source of constant Temp HP, Fiendish Vigor is not terrible for grabbing temp HP between fights with False Life.

For a stealthy striker, you also might want to look at One with the Shadow, which lets you cast Invisibility on yourself when you are in Dim Light or Darkness.

My last recommendation would be to consider Repelling Blast to use with a weapon cantrip like True Strike or Booming Blade. The ability to push enemies back 10' can come in very handy, and on Booming Blade the push makes them take extra damage to move back within melee range.

I would recommend using Summon Fey alongside you as the Fey also teleports with you every round and can also create a small darkness area that can ben be useful. 

I would only consider Lifedrinker invocation if you need the survivability part. There are several good invocations that I would select before that one.

I always thought Lifedrinker would be a bridge between the Warlocks d8 hp dice and a Fighetrs d10. From a BladeLock perspective if you're tanking then you're down on frontline hp compared to fighters averaging 1hp per level difference. The free action to use your hit dice in combat was a good counterpoint to having a lower hp max. I haven't played one (yet) though so unsure how it works in practice.

@CaptainKaru - can you give more details on invocations more useful to a tanky bladelock, and any gameplay notes on the choices. My next char up will almost certainly be one of these so interested to know the data behind your comment.

... Thanks!

Thank you for the question. I used Summon Undead (Ghost) and the Invocation Gaze of Two Minds to have the Ghost walk through walls and the cast Misty step from the position of the Ghost to be able to pass through walls in combat or for utility. I also used Pact of the Chain and Investment of Chain master to attack with the Familiar. There are several options, using Quasit or Pseudo Dragon for poisoning and Summon Undead (Putrid) for paralysing which gives automatic critical hit. Lessons of the First Ones to get Tough or Lucky can be useful too. And as you will be able to provide a lot of utility with your high level spells (Seeming, Dimension door, Fly, etc), using Misty Visions or Mask of Many Faces as a problem solver can be very good as an add on.

From a tanking perspective I have focused on using False Life to maximise temporary hp and then using Armor of Agathys. In combat I either recast Agathys if the temp hp is exhausted or I protect the temp hp with the Backlash spell or the Beguiling Defenses ability. I also use to have a couple of Mirror Image scrolls to cast if the going gets tough. Due to this I tend to minimise the loss of regular hp. Getting damage resistance is also very useful to protect the temp hp, from species, magic items, Tasha’s cauldron spell or other.

If you are allowed to take the Infernal Pact origin feat using the Lessons of the First Ones invocation, giving resistance to Fire and Poison damage (and Devil’s sight and the Deception skill), and allowing you to take the Infernal Bulwark feat at level 4, giving you (+1 to Cha) Cha as an AC bonus and a free casting of Armor of Agathys at level 2 (and a reaction option). This is a very good package for a tanky Warlock. Note that these two feats are part of the Monthly Drops included in the Dndbeyond subscription.