Focus your resources on your 5 war Titans (best practice is your choice of Supers plus Angus or Sigurd plus Ignis or Nova), keep your other tanks 20k below, keep all anothers 40k below.
Optimise your dungeon runs following this guide to get max Titan spheres over time (making sure you get 75/150 per day): https://imgbb.com/31nVHyj
Join a gold guild. Exchange all your GW trophies (including the blue ones) to bronze, then buy Titan potions with it in the shop. Huge boost.
Once your first Titans are AS, soulstones for those get converted to Titan soulcoins for which you can buy Titan potions at yet another merchant.
Up to a certain point it is also efficient to level up your Titans using emeralds directly. I believe the threshold for this to make sense economically is up to 1.000 emeralds per level, but here I am not entirely sure.
Participate actively in any Titan events - they are rare but boost your Titans a lot.
After all that, you can further boost your Titans using the dust from Hydra to upgrade Titan Artifacts. It is fast, but costs you a crazy amount of gold for a marginal improvement. Of course if gold is not an issue for you, this is the only way you can push your high-end Titan team above 270k and way beyond that.
Mind you there is now talk of a simplified dungeon mechanic (which hopefully makes that part easier) and also of Titan skins (which will eventually allow you to spend faster… errrh improve faster I meant ;)
Her magic attack skin is what you should focus on first because it will make her skills more powerful.
I'd focus on health next, especially if you don't have another healer. Good luck!
You can also check out this guide under the healers section: https://www.bluestacks.com/blog/game-guides/hero-wars-mens-choice-epic-fantasy-rpg/hw-skin-guide-en.html
My 27 years calculation may be a little off, if I plug the numbers into a series probability calculator (P(A)=0.01,P(B)=99.99) the number of tries to get to a 50% chance of getting cleaver is ~7000, which is only about 19 years, 2 months
are you TerryJerry of herowars discord channel? IF NOT, PLEASE GIVE CREDIT where CREDIT IS DUE! you got this from his analysis. https://discord.com/channels/462007482001391616/639592211708772362
I did find it through that eventually. The URL for my address bar is https://discord.com/channels/681863740832088104/682567892281196550
However, I saw I could make an invite link for anyone else so I did - https://discord.gg/3F9aBF2
Well, there is a simple auto-tapper that will beat on the theater button so you can at least get the previous from the advertisements when the video server is not working...