yellow 5* heroes
Joon is the yellow 5* Hero that makes many HotM look silly ( looking at you Thoth-Amun and Aegir ).
Some players really like yellow 5* Healer Vivica.
Personally, I like Onatel better than Classic yellow 5* heroes Justice and Leonidas.
Click for advice about 5* Heroes, 4* Heroes and Level 17 Forges
However, 4* 4.70 are stronger than 5* 3.70 - this is by design. Personally I would want 4x yellow 4* 3.60 and 2x yellow 4* 4.70 heroes ( total of six yellow heroes ) before leveling a yellow 5* Hero ( the exceptions being Joon, Delilah and Guinevere which I would immediately take to 5* 3.70 ).
5* Heroes
I have been paying since 2017-Sep and I have no 5* 4.1+ heroes, 2x 5* 3.1+ heroes ( Perseus and Joon ) and 4x 5* 2.60 for class quests and war ( 5* 2.60 are stronger than 3* 3.50 heroes ).
Hero XP
The biggest problem is not 4* ascension items, though that sucks. But the Hero XP and food needed for 5* Heroes ( or 4* troops ).
==Yearly Hero XP==
You can raise
2- 3 rainbow 5* teams per year,
OR
4- 6x rainbow 4* 4.70 teams per year
OR
8- 12x rainbow 4* 3.60 teams per year from training camps alone.So leveling two, or three, rainbow 4* 3.60 teams, then raising five heroes to 4* 4.70, then leveling two, or three rainbow 4* 3.60 teams, then raising five heroes to 4* 4.70, then leveling zero to two rainbow 4* 3.60 teams will give you 20x 4* 3.60 heroes ( the most powerful in the game with 1*/ 2* ascension items ) and 10x 4* 4.70 heroes ( the most powerful in the game with 1*/ 2*/ 3* ascension items ) and consume roughly a years worth of training camp results.
Thirty 4* 3.60/ 4* 4.70 heroes are a good base for war, and classes, and by then you will have all the 4* ascension materials needed to start leveling your 5* heroes. You may even have better 5* heroes at that time.