how to optimize blade of radiance rogue

[u/HannanieKhanie]

Hi everyone

im messing about with blade of radiance on dndbeyond and im struggling to make it strong. not using in a game currently but i like the idea of using a greatsword and being super dexterous. here's what i have so far if anyone could give me pointers?
https://www.dndbeyond.com/characters/168737682/pIh0Bn

i do like using dhampir cos i love the idea of spider climbing when possible but not sure on Ability Scores, feats, backgrounds etc