Don't do this. The lightning spear is one of the worst lightning weapons in the game and the materials to upgrade weapons to lightning +5 are limited each playthrough and very very rare if you try farming. If you want a spear-like weapon then upgrade a halberd to lightning+5. A lightning claymore +5 is more versatile though and outdamages a lightning spear +5 by a large margin as well.
Ya I really like the Heavy attack of the Claymore, suits my current playstyle more since I keep it safe.
Lightning claymore good for pvp and pve? I play to only get up to SL 60 or 70, then Darkwraith and sunbro.