Nothing you can do against good players using pure minion builds and tower pushing all the way to the citadel and some maps you just need to take out the archer towers in the back only. Favor on or off dosen't matter the strat is game breaking.
It is the idea of course to take out the enemy citadel and the faster the better. Just not many tried it cause everyone wants to "gank gank gank" instead of focusing on the real goal in conquest which is destory the enemy citadel not "how many DG kills you can get".
Now that more people are catching on soon enough people will realize it's game breaking making DG a broken game with pure minion builds. No counter to it except for doing the samething right back, but doing it better.
The best of course are Lord Erebus and Oak for pure minion builds and both do an equal job at it, so i don't know why in some posts people only talk of Lord Erebus nerfing his minions. I only play mostly with Lord Erebus cause his minions pick up abit faster at the very start which i can use asap to help with tower pushing/citadel attacking. The Oak is just as good once he gets a couple raise dead flags down at two lanes and also you can fly his spirits around to the back easier avioding towers if you want. Oak also can beat Lord Erebus in the long run in a 1v1 when both are doing the same strat against each other cause the Oak can get SoF AoE and collect minions from raise dead flags if you put them down before going back to AoE Lord Erebus minions attacking your citadel while Lord Erebus can't do either.
The games broken when you play this way and why play any other way when the goal is to destroy the enemy citadel? 1v1 it's either Oak or LE, 2v2 i'ts ofc both of them and for 3v3s it's Oak, LE with the 3rd being QoT.
A good example for a build order and items just check Shadow's link and that's 90% exactly what i do with my pure minion build for Lord Erebus.
This game is great just broken right now 
