Their fixed skill, Net, can help recruit creatures that are immune to lust
They can also act as something of a mana battery, taking it from enemies (if they have the skill) and then fucking allies to recharge their mana with their passive (note: only works if the spider girl initiates).
Thanks to their Jump movement, they are one of the few Centaur hybrids that aren't limited to moving in straight lines, though they are also a bit slower and physically weaker.
Due to their Abdomen trait, they can lay eggs at the cost of 10 energy without actively engaging in breeding.
They are the only source of Silk for some crafting recipes.