The greater the power, the greater the responsibility; the greater the responsibility, the greater the power.
Back then, Spider-Man lived his life as a loser, and Uncle Ben bore at least half the responsibility. He never finished the second half of the sentence, dying after only saying "with great power comes great responsibility," leaving the latter part completely unsaid.
The 20 Astartes legions of the Imperium of Man have always been a hot topic among all races in the galaxy. These spectators love to list their favorite legions, recounting how powerful and unique each one is.
Some say the Ultramarines are the strongest because they have the largest number of legions. Guilliman is upright and incorruptible, and the 500 Worlds of Ultramar serve as the strongest backing, capable of burying anyone under sheer numbers.
There is even a rumor that Khorne has never left his throne because a tunnel beneath it leads to an endless supply of Smurfs; the moment He stands up, the Ultramarines will tear through the Warp.
Others claim the Iron Phoenix are the strongest because this legion possesses two Primarchs and boasts the highest level of mechanization in the Imperium. What use are numbers when you can be blown away by a single cannon shot on the battlefield?
Furthermore, the Iron Phoenix has that big, dog-girl Primarch, Ful. Within the Khala Network, the Iron Phoenix has the highest popularity, and the lewd art of Ful and Lady Alpha is considered a treasure of the Imperium of Man.
After all, Primarchs are the offspring of the God-Emperor; calling them heretics is politically incorrect by nature. Who wouldn't want to be loyal to the Imperium while satisfying their own secret little fetishes?
Biological XP is so broad that basically every legion has a group of loyal fans. Even