Next up is the Trollers Den. Here, you will get the Flamer (starts off as a medium melee unit, but can use the Berserk ability [based off of Avatar] at the cost of turning Neutral Hostile for the duration of the spell), the Noob Mod (can Ban enemy units on attacks, which is essentially the Banish spell) and the Thread Ressurector (has the ability to revive incredibly old posts, essentially summoning them out of the ground to haunt the enemy. Sort of like the Locust ability, only much weaker [as this is for a unit]).
And finally, the last building should be the Pro's Hub. Here you can get Paypal Donaters (they can steal money by targetting an enemy building, channeling small amounts out over time) and Map Makers (As they make maps, they can easily glide across them, giving them the ability to Teleport. They can also modify enemy or friendly unit stats, but I'm not sure what ability should display that yet).