I took Abi's, Spell Trigger, Maze, and Summon Fiend. With Spellstrike and Lower Resistance, I have no need for Pierce Shield.
I took Maze, just in case I need a little breathing room. Maze a couple of enemies, then launch a few skull traps at their re-appearing point. I took Summon Fiend, just because I'm sick of them doing it to me.
You could always use your Greater Malison, Web, Web trigger and then Incendiary Cloud. Then again, 20 rounds of 75% resistance isn't bad either.