Quest to make Maim useful in SP

Apply growing power (sentinel weapon is easiest) -> activate 3 for ability strength buff.

[Growing Power] + 3 buff will result in 203 ability power, enough for a 50% pillage strip to apply once or twice before discharging [Maim].

Consider replacing [Fleeting Expertise] with Hunter Adrenaline for infested missions, as you won't be spamming Pillage, so the lack of shield return makes you less tanky - heal with magus elevate for health + energy when required. Should also swap pillage for either Roar or Breach Surge.