Literally Fishing using Warhammer Space Marines as Lures.

Lightning Wraiths, Warhammer 40,000 Homebrew Wiki

Goobertown Hobbies

Goobertown Hobbies

I once read that space marines in the 41st-42nd millennium are inferior to their brethren from the great crusade due to the gene seed deteriorating because of the lack of their Primarchs.

Baithammer 40k, Bait / This is Bait

Goobertown Hobbies

How powerful are Daemonic Warbands in comparison to space marines? - Quora

Warhammer 40k, Convert or Die

Ultramarines, Warhammer 40k Wiki

Lightning Wraiths, Warhammer 40,000 Homebrew Wiki