I knowe we can upgrade skills by sacrificing slimes and other heroes but how about the Talents? Do they increase in time from 1/5 to 5/5? Coz from what i know, refresh only changes the talent randomly.
Great question, I think a LOT of players wonder this also.
I'm not sure that I completely understand what you are asking, but...
As you level up your heroes talent (the ability shown on the left <--- ) it will increase in power and duration. )
As you said, sacrificing Slimes will increase your progress towards leveling the talent.
Green Slimes Yield: 100exp Blue Slimes Yield: 600exp Gelatinous (King) Slimes Yield: 3,000exp
On the bottom right ---> of the Heroes Altar menu you have the option to change your heroes talent (which as you can see costs 300 gems :-\ Ouch)
Basically, I think you should just level up your current ability, in the long run, you'll have time to think about changing later.
Let me know if that answered your question! ;-)
The answer on your question is "no"
If you refresh a talent, it does NOT go from a 1/5 talent to a 2/5 talent.
You might as well get a 3/5 of another talent, or just another 1/5 talent.
You might even be so lucky to get a random 5/5 talent in just 1 refresh!
It is perfectly random. No 1 knows what comes next, or what grade.
Hope i helped...
A change is getting pushed for android that will reach us at some point hopefully. if you spend the 300 for a re-roll and its worse thn what you already have you can choose to keep your current talent. Neato~!~