If Tianming hadn't been sealed by Yggdrasil, he could smash evil and crush darkness. By then, not to mention the Dark Masters, he could even go toe-to-toe with the Seven Maou.
Besides, the Digital World wasn't that strong. If Tianming genuinely wanted to destroy this world, all it would take was a single slap for the world before him to be reduced to nothingness. Let's not forget, he was also the Red Dragon Emperor, a dragon capable of destroying the world through sheer brute force alone.
"By the way, since you aren't the world's will, who on earth are you?"
Chapter 255