Sorry about the confusion
I meant to add, peeka master is weaker when defending by 75%, because it isn't use to defending. She's use to destroying buildings, not troops. She sees troops as allies, not enemies. Therefor she doesn't use her powers at full potential while defending.
More details on peeka master
Lvl 10 town hall required to get peeka master. Lvl 75 required to get peeka master lvl 2. lvl 85 required to get peeka master lvl 3. Lvl 90 required to get peeka master lvl 4. Lvl 110 required to get peeka master lvl 5. Does that satisfy you?
samurai swing= is iron fist
they are basiclly the same thing as you explained it, players want something different and new. Also why does the ability cost elixir not dark elixir, speaking of that their should be no price to unlock the ability just the level.