Help me fix/improve my Solo Magicka Nightblade build ( Skills )

Hi, I'm new when it comes to playing Nightblade and these are the skils I managed to pre-select after watching a couple of tutorials. But I guess that there are better sets + I have all the DLC. Should I change something? I'm mainly a solo player who mainly does quests, but when it comes to dungeons I don't do veterans.

Front bar: Swallow Soul, Impale, Merciless Resolve, Debilitate, Deadly Cloak

Back bar: Stampede, Twisting Path, Dark Shade, Barbed Trap, Carve