Quote from Hufflechonker >>

I am currently playing a wizard who primarily uses a crossbow for dealing damage in combination with true strike. I however also have ammunition that deals an additional die of necrotic damage and the spell specifies that you can choose between dealing the weapon's normal damage or dealing radiant damage. However I don't know if the ammunition can be considered part of the weapon or if it is a seperate entity. Does true strike override the necrotic damage die and turn it into radiant damage or will it always remain necrotic damage?

"it can be Radiant damage or the weapon’s normal damage type (your choice)" (emphasis added)

It works with ammunition, and you can choose to override the normal (presumably) piercing damage with radiant. The extra necrotic damage stays necrotic (just like how True Strike's "extra" damage is always radiant), but ask your DM.

thank you :)

Quote from gothicshark >>

Quote from VitusW >>

You make a good point there. I guess the last thing to think of is if it could be thought of as turning the weapon into a radiant flametongue of sorts semi-similar to Magic Weapon modifying the weapon to have a beneficial property. (Kind of makes me interested in the (I assume) eventual Sage Advice.)

But like I said, that's a great point you made. And definitely gets the mind racing about Bladelocks. Great in lv1-4 and allows your lv5 Invocation to be freed up (in exchange for having the TS+AB combo earlier) with not needing to take the invocation that allows extra attack. I feel like if I start doing Adventurer's League that I'd want my first 5.5 character to be an Orc Celestial Warlock with this combo.

 

Just made a test character  4 psi warrior, 16 Celestial Warlock. My math came out over 100pts of single target damage per turn.  This included 3 attacks per turn, using a Rapier with weapon mastery, and the new improved "thirsting blade" and it's upgrade. Note bonus damage from smites, and abilities double, and warlock smites do not count as a spell even if they burn a pact slot. So unloading psi dice, smite, true strike on a crit is massive. Vex basically means 2 out of the three attacks are at advantage, which increases crit chance like crazy. 

Here is the idea... note I made it max per rules at the end... as every 30k xp after 20 is an epic boon. https://www.dndbeyond.com/characters/132094390

 How are you using thirsting blade with true strike? (the character sheet link doesn't work)

Interestingly, if you change the damage type to radiant, you can no longer use basic poison.

Which honestly makes sense.