It looks like a planet busting attack to me with the full context of the scans. What are NEO'S other feats? Does he have feats saying he can even tag a FTL combatant? Just curious, don't read Toriko.
Yes. The Whale king is a black hole that exists in a different dimension, and one of the Acacia's full course, Another, is FTL. Komatsu's group caught Another. Neo, Slime, Ichiryuu, Jirou and Midora are god tiers while the 8 Kings are just top tier. Slime is probably MFTL.