Clash Concept #1: The troop boost

This is a small idea that could probably change clash.

'Troop boosts' are big boosts that increase all stats of troop by up to 75%. It has 3 levels

Troop boosts are boosts that can be bought with gems that can last from 5-2 hours by level. Upgraded through the laboratory, they are bought with gems at this rate, and boost troops by:

(Will go by level: 1, 2, 3)

Gems (Cost): 20, 25, 30

Boost %: 25%, 50%, 75%

Duration: 5h, 3.5h, 2h

Upgrade cost: Free, 1,000,000 elxir; lab lvl 4, 5,000,000 elixir; lab level 8

Time: Instant, 3d, 7d

Questions you may ask:

How does the boost% work?
By the troop level: ex. Level 1 barb will receive a stat boost by 25% based on their current stats.

Why shorter time?
Because the boost can get so OP if the time is going up. Specially if the top players use it.

Offline, will the time continue, or stop?
It will stop. This might be too OP AGAIN, but it could be nerfed. But for now, it only goes on if you are online.

Will it work on heroes?
No.

Will it work on spells?
No.

What possible nerfs could be added?
Ideas: You cant use it if trophies are 4000+, time nerf by league, price increase, no effect in clan war, percentage nerf, ect. Offline- time goes on, no wallbreaker, Dark troops are diffrent boost, ect.

Absolutely no. And I'd want that this never gets implemented. It would just make your troops way too overpowered and ruin the attack-defence balance of the game.