To Coral, strange stuff wasn't new, he had encountered zombies (Sanitized Octarians) and a living blob (Shade), but he has never seen a shadow separating from its source before, let alone one that can harm people physically. Either way, he will stick to what Clam always tells him and report any strange stuff to General Anemone whenever possible. But due to sport battle rules, he cannot use his phone to call anyone until the match is over, so he will do his best to avoid the moving shadow at all costs.
"Just great, as if I hadn't encountered enough weirdness in past battles." he sighs. "Regardless, I will do my best to get out of this battle alive and tell General Anemone about the potential threat that shadow would pose."