Been able to farm perfectly fine without a ban, I don't use 1 hit kill and if I do I don't use it with I fire skills no cool down. It doesn't allow me to use skills regardless if I have 1 hit kill, other than that when I farm I turn off 1 hit kill and use just about everything else with no soft bans, but I'm not reckless. I manage to get a reasonable score while farming in reasonably strong areas where the score is possible so you can't really tell if I'm hacking or not based on my team and class. I guess they could if they really paid attention and noticed I don't get hurt through the whole fight but yet again I'm not on all day only till my energy runs out or I'm half ways and I play frequently throughout the day for about 1hr or less. Just don't be reckless with the hacks, for example trying to get on the top 10 leaderboard, trying to show off screen shots of your farming deck or giving tips on your farming methods that seem off, trying to farm events with unreasonable high boss kills and score, things like that will get you banned for sure. So I try to stay in the top 80-200 rather than aim for the top spot. And I still get the event rewards without being banned.