This is a fun little trick me and my friends do once in a while when we get bored.
We play exile, get a reg with heaven's wrath, a beast, an erebus, then a random (hopefully a 2nd reg).
We proceed to get warscore 10 when they are at warscore 1. If you control the crystals you control the map. Just never let go of the flags. Always attack 4v1, snipe + wrath. get the kills.
Everyone goes back to the citadel, we buy all the creeps at once, and all the armor / dmg upgrades for the creeps.
We proceed to sit back and see if the enemy can handle only giants, no demi gods in battle.
We do a play by play announcement as the game goes on, and it ends up being hilarious.
Try it out, if I do it again I'll save a replay.