I know nautilus doesn't need buffs but if it ever did this oen woudl be really cool
Q: Nautilus thrust his massive anchor in a targeted line dealing damage and pulling himself and the first target hit together.
*His Anchor is so massive that if it kills the target it continues forward until it hits terrain or target which does not die, or contacts turrain.
Just a fun and unique mechanic I think would be fitting, similar to mf's Q that use's enemy minons to their advantage.