Level your first rainbow team from 4* tier 1 level 1 ( 4* 1.1 ) to 4* tier 3 level 60 ( 4* 3.60 ). Do not use 3* ascension items, yet.
Any 4* 3.60 hero is better than any 3* 3.50 heroes.
==Leveling your rainbow team to 4* 3.60==
4* 3.60 heroes are the most powerful in the game using only 1*/ 2* ascension items. 1* / 2* ascension items can be farmed on the world map along with recruits, food, iron, XP, ingredients, 1* / 2* troops and 1* / 2* heroes.
Two 4* 3.60 heroes take the same XP as one 4* 4.70. But the 4* 4.70 is not twice as powerful as each 4* 3.60 hero. While two 4* 3.60 heroes are more versatile, and with double color ( see below ) potentially more powerful.
If you level a 4* 3.60 hero to 4* 4.1 you use six 3* ascension items. If you buy them during special offers, this will cost $12+ USD. You can never get these 3* ascension items back.
Save your 3* ascension items, and the hero XP, until you know the game better and can select which heroes are good.
==Use only same color 1* / 2* heroes to level your 4* heroes==
Using matching colors doubles your chance of the hero’s special skill increasing, and gives you a bonus +20% hero XP.
Later you can experiment with off color/ random color leveling of heroes.
