New Defense ... The Dark Portal

The Dark Portal is a defensive building fueled by dark elixir that summons dark troops. Visually it might look like a dark mirror or a cauldron of DE that troops emerge from.

As the building increases in level, different troops become available. Users can cycle through which troops are summomed in the same way you'd change the modes on the inferno tower or xbow. At level 1 only skeletons are available. At level 2 maybe minions. At level 3 maybe golemites or something new. Depending on the units it could defend against air or ground and air.

Now this has the chance to be overpowered or underwhelming. It's all in the details of finding the right balance between number of units summoned, range, health of building, etc. But I hope SC considers this because it's open ended and offers some new and exciting possibilities.

Also with portals we don't always get what we expect. Sometimes something big and bad comes through. As a twist, I would add a small chance of this happening. This would be a catastrophic event, destroying the portal in the process. What emerges is a monster that destroys everything, friend and foe. For coding simplicity I suggest casting it as a midlevel BK with new graphics.

You have to be careful with this. Some strategies revolve heavily around units that cannot target enemy troops (hogs, balloonion, etc.) and therefore have little defense against this. The heroes make these strategies more difficult, sure, but they're just two units with a limited range - in many cases it's possible to avoid them altogether.

This is why the devil is in the details. For example it makes a huge difference if the range is limited like a hero or if it is larger like a clan castle. Also you might choose to make it relatively weak for a building so it could be taken out with one or two lightnings. It'll take a bit of play testing to figure out the right balance but could add a new element to the game.