Soul Suppressing, it suppresses not only the soul, but also the essence nature of spiritual power.
Know this, when the true Soul Suppressing Sovereign Tree descends, it can suppress the spirit energy of an entire world, deemed as the Absolute Heavenly Passage, causing the decline of spiritual energy.
Then, the creatures within must, in a demonless state, crush a Great Existence that can easily grind super-technological civilizations to dust.
It sounds very unfair, but this is reality.
Even the powerful defense instrument tracks of the Main World become ruins in an instant before it.
Crash!
"My path, from brokenness to completeness, will eventually shine upon the Mother River, no demon... can block this path!" the Abyss Ghost Tree roars inwardly, with endless Nether River's Force sweeping through.
As long as it can suppress the opponent's spiritual essence, whether to advance or retreat is all up to it.