If a rat is cute, why a union of 100 rats isn't 100 times cuter?

I commanded my flying sword to make a sharp maneuver to dodge.

"Hell!"

The inertia almost threw me off the blade. Good thing I was sitting and not standing.

The Unholy Rat Union was much faster than one could expect from something the size of two horses stacked on top of each other. It also was still growing as more and more Twinning Rats ran toward it and became a part of its flesh.

However, it still didn't grow wings, so I had absolute air supremacy.

I charged another Purple Dragon Claw and flew at the Union.

It raised its claws at me, and I slashed right at them. In melee range, Purple Dragon Claw had an even more devastating effect than before.

The swing cut the Union in two, destroying another huge chunk of flesh and hitting it right in the Proto-Core. Ashes and blood poured out, turning the forest ground into a red lake. The Union screeched with dozens of maws.