Seeing as the World Destroyer was somewhat injured, and he likely wouldn't get an opportunity like this again, Liam had to decide between riding the megalodon, or abandoning it.
'Alright,' Liam thought. 'I'll save this beef for later.'
'This is still the first course.'
In a split second, the Black Blade transformed into the Breaker, then exploded in a devastating burst of darkness.
KRSH!
If the explosion was done in any other way, it wouldn't have caused significant damage.
But since it was lodged between the megalodon's scales, it instantly cracked through a large patch of armor.
Plus, the attack was amplified, since Liam waited until the shark's lightning charge was halfway through, causing a chain of explosions that ran across the World Destroyer's spine and tails due to the disrupted charge.
"WORLD DESTROYER! NOOOO!" Asta screamed, tears streaming down his face. "HOW COULD YOU?" he pleaded.