Use 4 ability strength archon shard to get to 230% strength, then molt augmented will do the rest. If you want you can also use Madurai school to increase your ability strength by 40% for 20s so you end up with 310% strength.

You can also pair [Xaku] with [Shade] or a [Huras Kubrow] for it’s invisibility

Arcane crepuscular instead of molt efficiency is also a good choice to minmax the dmg if you don’t mind having less durations