Catalyst

Fusing is typically limited to:


 * MonsterGirl + Monstergirl


 * Spirit + Monstergirl


 * Creature + Spirit


 * Creature + Same type Creature
 * Spirit + Spirit

This trait allows for:


 * Creature + Any Creature
 * Creature + MonsterGirl

The primary use for this trait is to fuse a Monstergirl with a creature you only have one of, but wish to breed.

You would then have a Monstergirl/Creature, and that could then be bred with other monstergirls to produce another Monstergirl/creature, and two of those have a 1/4 chance to produce the original creature.

This is a good way to acquire a breeding pair of Seals, or very rare creatures like the Kraken.

It is also a way to get powerful creature only inheritable skills from creatures to Monster girls.