Ok, for me this is the best eay to get exp. (what you can get each 15 seconds)
5 coins per second = zombies level 1
10 coins per second = zombies level 1 and spiders level 1 (use it both)
25 coins per second = spider level 4
50 coins per second = spiders level 5 and skeletons. (Use it both)
100 coins per second = skeleton level 2
Most Effective way
1. Slimes (no longer, only during double income)
2. Blazes (cureently the most effective way to get exp)
3. Spiders (used during early games)
4. Skeletons
Most exp when 12
1. Giants
2. Slimes
3. Blazes
Well what is the best troop and a cheap one, where you can actually profit with xp? Like lvl 5 zombies cost 380gold and they give you 15xp by each
lvl 1 spider gives you 15xp so that is a profit
What is the best mob?
The best for me is level 2 spider which is cheap and 16 xp and the spider price is 16.