Shuriman Tactics [Game Mode Concept] (not very good at naming things)

In this game mode you can only play as the Ascended/Darkin or Void creatures (Nasus, Aatrox, Kayn (turned into Rhaast form at start), Velkoz, Kai'sa, Kassidan etc.). The side you are on is random (so the Ascended/Darkin is put up against the Void creatures). The game mode is basically dominion, but you need to tactically upgrade your minions or defenses (like turrets or walls) to protect your minion spawner. There is an wall around the minion spawner and fountain that players can't flash over or get through so that the players will have to go through a lane.

The game map has 5 control points (not including the fountains) and it is symmetrical on each side. There are 2 control points on each side of the fountain and 1 control point in the middle. There are big lanes connecting to each control point on the map and jungle on each side. The control points allow the players to spawn there and buy items. In the jungle you will find camps and it will give you a different type of currency, which can be used to upgrade minions for the next few waves (more defense/ more attack damage). The middle control point is special because you are able to get a great advantage to spawn in if it is controlled by your team (void: rift herald, acsended: something else). In the lanes you can create wall barriers in front of your towers that the minions will have to fight through.

If your team controls all the control points, that makes the minion spawner vulnerable. However as a final defense the minion spawner will turn into something that will attack the player (void: baron nashor, ascended: sun disc?). It will not regenerate health unless one of the control points is taken over, which will make the minion spawner invulnerable again, but won't attack anymore. Once the minion spawner is down the game is over.

I think this is an interesting twist on dominion, and could really be fun if it was a 6 v 6. But I don't know put some suggestions or what you think down in the comments.