I am not used to come to this forum, but I often read when it comes to updates like this and I will give my opinion here.
I think this update is the best we had since I started to play in july :
The artefact sorting is great, the increased capacity is very good, the damage and turn counter in clan boss are very welcome and will help clan members to manage their damage, the improvements (for champions but also this time for buffs and debuffs) are welcome as always.
The difficulty reduction in FW is nice, so is the increased rewards. I think the thing you did to reduce pushing in Platinum is great.
I think the overall update is great, I really do. So don't take what I will say the wrong way, they are just really minor things compared to what we are used to see coming from Plarium.
1) I really think the buff for Ma'Shalled was too much. I know he has been the worst legendary since I know the game, but his buff is insane in my opinion.
2) I am really concerned about the new legendary champion. I will wait to see how he performs, but I don't really see him doing great :
His A1 is not really good, and even problematic against Tormin
His A2 is a 1 target 1 turn provoc with 2 turns cooldown, which is really fine for a rare, not for a legendary. Yes, the cooldown is low but as a legendary I think he should provoc for a longer time or provoc multiple targets
His A3 is a pure joke, stag knight does the same and brings def down, serris brings with the same cooldown 3 turn break atk + break def + remove debuff
The first passive can only proc during very long fight (if an opponent can play 4 turns and if at that point a true fear debuff matters, you can have some serious question to ask yourself about your team)
The second passive could be great if skullsworn was not bad (even for FW he is not good)
i will wait to see if he hits hard, but even if he does I am not sure I can find a team that fits him really. he can be usable in FW, but only because epics and rares of the lizardmen faction are really bad for FW, even with his insane base stats.
It is a fusion and people will likely spend gem to have him if they think he will be good somewhere. But when I talked to the people I chat with, I get a similar feed back. I don't really know the general opinion on him.
3) I don't think the relentless set needs a nerf, the main problem with this set is his incredible synergy with rotos. I think you should nerf rotos a bit, and let the set as it is (And no, I don't say that because I don't have rotos, I have 2 of them).
You could nerf him by removing the extra turn on A3, or by creating a new fusion champion that can counter him quite well so people does not need to rely on a good pull to counter him (I would fuse a champion without thinking twice if I thought he would be good for me to counter a bit Rotos-Siphi in defense)
That is it for the negative points (in my opinion). Again, great update I would love to see you continue in that way