Because of the racial characteristics of the Evil Clan, they needed to devour the souls of living beings to enhance their strength, so they naturally had conflicts with both the Human Race and the Dragon Clan.
If they did not invade the Present Realm, the Evil Clan would only have internal wars, devouring each other.
After the Void Emperor ascended to unite the Evil Clan, internal strife was curbed and transformed into a form of mutual devouring called "battlefields."
Of course, the battlefield was still a racial war, only it was organized by the Imaginary River in a game-matching style, pitching close-strength two-way, three-way, or even five-way familial forces into battle, where the winner took all and the loser's race was exterminated.
This method was more efficient in leveling up compared to the chaotic and disorderly all-race brawl and prevented high-ranking races from wantonly slaughtering lower ones, which would waste resources.
