Minion becomes available at Town Hall 7 once the Dark Barracks is built. It has a total of 12 levels. Here are the max levels of Minion: Town Hall Max Level Picture TH7 2 TH8 4 TH9 5 TH10 6 TH11 7 TH12 8 TH13 9 TH14 10 TH15 11 TH16 12 Minion’s Max Levels

You can unlock Root Rider at Town Hall 15. She has a total of 3 upgrade levels. Here are the max levels of Root Rider:

You can unlock Electro Titan at Town Hall 14. She has a total of 4 upgrade levels. Here are the max levels of Electro Titan:

Dragon Rider is an elixir troop in Clash of Clans, available at Town Hall 13. This unit has a total of 4 levels. Here are the max levels of Dragon Rider: This troop has no upgrade available at TH15.

Yeti is an elixir troop in Clash of Clans, available at Town Hall 12. This unit has a total of 6 levels. Here are the max levels of Yeti:

Miner is an elixir troop in Clash of Clans, available at Town Hall 10. This unit has a total of 10 levels. Here are the max levels of Miner: This troop has no upgrade available at TH16.