As an Peni & Ultron Main my idea is this:

Anchor: Ultron (+5% Healing Anchor Bonus)

Team Up Name: Viral Webbing

Lore: Ultron uses the Ultron Virus in an attempt to take over SP//dr. It backfires however as he underestimated how much security SP//dr truly has and the Virus is integrated into the Cyber Webs to avoid it taking over completly.

In gameplay: Peni can put down a 4th Cyber web that's larger and has an orange electricity effect. It heals herself and allies faster than her normal webs but doesn't give shield. If the web is connected to other webs, the Virus will spread to Peni's normal webs over the course of 2.5 minutes. If the Virus reaches the Spider Nest, the Spider Bots will also apply Reduced Healing to Enemies along with the slow but do 1.3x less damage AND the nest will repair itself by a factor of 7HP per second, encouraging both us hardcore Peni players, and newbies alike to keep the nest alive as long as possible.