Wu can indeed survive hits from smaller titans at 3-60 so if you are not planning on moving alliances anytime soon and your alliance is stable at 7-8* titans, you can definitly leave him there at 3-60
If that is the case then yes, Mist is definitly the best option of the others… I would do Wu Kong as priority next tho.
I wouldn’t bother with Sif for a little while yet… not until you have all the materials needed to take her through to 4/80…
Some general advice regarding Hero Levelling:
The first piece of advice - Focus on the 4*s
The best advice I can & will give is to focus on 4* heroes & pause the 5* ones (once you finish their current ascension tier). Reasons being:
5* heroes are very expensive & time consuming to level-up. They need a lot of unfarmable materials
4* heroes who are maxed are more useful than a 5* stuck at 3-70. 4* heroes can be used in more places (more tournaments & more challenge events) than the 5* who’s stuck. Additionally, the 4* hero can be emblemed up while the 5* hero just sits & looks dopy…
4* heroes form the base of the game. In wars & raids, most players (except the very very advanced ones) supplement their line-up with 4* heroes.
My advice is to work on 4* heroes until you get 4x maxed rainbow 4* teams. This will allow you to get:
a) a good base roster to work from. Useful in wars, raids, tournaments, events etc…
b) a good understanding of your play style. What skills & hero types are best suited to you.
c) able to stockpile those extremely rare unfarmable 4* ascension materials (Darts, Tomes etc…)
Only once you got 4x rainbow 4* teams (15-20 maxed 4-stars) would I focus again on 5* heroes.
And a good thread on the vast benefit of Titan Damage Boosters:
Titan Damage Boosters. Who’s best?
Who is the best and most worthwhile to level and use? Wu Kong, Tarlak, Miki, Ranvir or Guardian Gazelle? Or some other attack buffer?
Update - 23 Jan, 2020. Analysis now includes Guardian Gazelle
Too long, didn’t read? My opinion is that the best is Miki followed by G. Gazelle follwed by Tarlak. Reason being is primarily because there isn’t the miss factor… I hate misses
Between Ranvir and Wu Kong, it becomes more personal pre…