Hi I played a lot with QoT and usually going after an offensive build. I'm not a pro player, still doing mistakes, but having lots of fun with it. The thinking behind this build is doing as much damage as possible as early as possible. Here is where ground spikes and minions come in. Ground spikes reduces enemy defense while QoT does not do much damage. Therefore it is important to get as much conventional damage as possible. This can be achieved by minions (shamblers and idols).
Basically at lvl 11 I would have lvl 1 shield, lvl 3 shambler, lvl 3 entourage, lvl 4 spikes and at least lvl 4 priests and archers. You will be getting extremely strong from lvl 7 to around 13 when most players would not have stacked armor items and spikes still takes their def down noticably. This is usually where it is really fun as you will outdamage most other demigods (but you might have problems killing them if they run away, as going for HP/Armor is more important than speed).
The problem comes when a game lasts longer. At lvl 15ish people usually get high enough armor to reduce spikes effectiveness while your minions arent doing enough damage to kill them quickly. Usually I went upping morale as it increases your armies damage (40 damage per point when having 10 minions does not sound that bad) and it works well if you are already on the verge of winning at lvl 11.
But if it looks like that the game might last til lvl 20 I will become less and less effective except for killing buldings. I was thinking if it might be worth switching from offense do defense if the game might take a while after lvl 10. Theoretically going for goddess of thorns and bulwark of ages should give you 40% dam reduction´to everything while having armor of 4k+ gives you 60%+ dam reduction against auto attacks. Would put you dam reduction to almost 80% and together with the thorns armor and shield (reflecting 70 dam) you might be able to withstand autoattack heavy demigods when using shield and mulch. So far I've only tried it out once (and forgot to spec mulch...) and was at least able to withstand for quite a long time (meaning "more than 5 seconds) against a lvl 20 beast.
Im not sure though if it is really viable or if it would be better going morale and hoping that the added damage will help to finish the game before every other demigod gets too strong.