Demolisher!

[Soulstinger]

Okay; anyone having difficulty in the Infested Mines; the Demolisher is a god-send. Groups of ticks? 1 shot. Groups of seekers? Knocked back, stunned, 2 or 3 shot. Clears the eggs easy. Havnt run across a 2-star seeker yet, but 1 stars get dealt with just as easily.

[M'Hael]

Definitely good for crowd control when playing in a group. Honestly though, I was a little disappointed in it's performance against seekers and seeker soldiers especially when it comes to the starred variants.

[Soulstinger]

Soldiers not so much, but vs normal seekers (normal or star) it works fine.
In dungeons it truly shines

[Soma]

Until you have the resources for the demolisher, the regular sledge hammer works great also!