Looking to build the best melee hexblade warlock possible. Only willing to sacrifice two levels max, for a dip if it's worth giving up the last ASI, which might be possible since Tasha's Custom Origins options are allowed and we can start with a free feat at level one. (Custom lineage or variant human would allow for 2 feats at lvl 1 which is interesting to consider.) But have been leaning towards Half-elf for 2 1 1 and getting elven accuracy (devil's sight/darkness combo allows this to be almost guaranteed advantage outside of blind sight/tremor sense).

That said I would ideally like medium armor master for 3 AC with half plate with no stealth disadvantage. PAM GWM preferred. I would also like to pick up agonizing blast for a reliable ranged attacks for when it's necessary.

The stats rolled were 12, 9, 15, 16, 18, 13.

Was thinking Str 9 ( 1), Dex 15, Con 16 ( 2), Int 12, Wis 13 ( 1), Cha 18 if Half-Elf. This give my no negative mods, and with MAM, PAM, GWM, EA feats as long as I don't multi-class I can pick up Slasher for 16 Dex (to go with glaive/halberd) and an ASI for 2 to CHA (yes that's 6 because the free level 1 feat and would mean only a 1 level max dip elsewhere).

All that said this is just an idea for the most basic framework. Which might not even be optimal. Hence why I come here. To be assisted/guided/corrected.

Strongly considering 1 level fighter to start, for Str and Con saves, a fighting style, and second wind. (Along with starting armor/weapon to save a bit of gold and have the starting equipment needed.) This character will be starting at level 5. Since I'm sure that's relevant.

EDIT: This is for a solo campaign so darkness/devil's sight will not be hampering party. Also, this is why I wanted MAM to still be capable with stealth-wise and have a slightly increased AC.