After seeing for himself that the trolls had considerable strength, tough bodies, rapid regeneration, and the fact that they could even use magic. Matthew had been tempted to collect their monster data and make their slightly-cheating traits for himself.
He was quite conflicted at first when he first found out about these things as he felt quite bad killing fellow demihumans that will also be a help to fight the human army. However, after seeing the troll's attitude towards him and the kobolds, Matthew had lost all of his hesitations and had planned to come back to the troll village the moment he left this afternoon.
His goal, of course, is to gather the troll's monster data before going into his fourth evolution. He had been waiting to find something interesting for his fourth evolution and the troll's monster data just seem to fit the bill.
