Oh, but wait. DOES EKKO HAVE true damage? Nope. Lol. His heal is also his ult, Ahri can constantly sustain with her passive. Ahri's charm has a lower CD and much more reliable than his stun. She can activate her movement speed on command, Ekko has to hit 3 times. You were saying?
Katarina - Yes. Of course she has MASSIVE BURST. It's all she has. No stuns, no slows, no sustain, only refresh on kill so if no kill, no reset. And has a single targeted blink. So naturally, with only burst and a blink, her power is loaded into damage. See how balance works? You were saying?
Swain has sustain and CC. That's it. No mobility, no true damage. That's why he has lots of sustain and great single target damage. He's missing the other parts.
Fizz doesn't have the true damage or hard CC or sustain.
Zed doesnt have true damage, or sustain, or hard CC.
Annie doesn't have true damage or mobility or sustain.
Ahri has mobility, true damage, sustain, hard CC, and burst. So, again, you're making me repeat myself. Ahri has everything all of the other champs have and don't have. So, again, how would adding on more balance her? She's more jack of all trades than the rest. Her biggest niche is mobility. So yes, she can't burst as hard. Yes, she can't out sustain Swain or out burst Zed or out CC Annie, but she is more mobile than all of them, and still does everything they do.
Think of kits as having a power rating. Say the max number is 20.
Zed has damage, mobility, cc (Slow). So, Damage is at about a 14, mobility is at a 5, cc is at a 1.
Ekko has damage, CC, mobility, and a heal. Damage is at like a 12, cc is at a 3, mobility is at a 4, heal at a 1,
Annie has damage, CC. Damage is at a 12, cc is at an 8.
Fizz has soft cc, mobility, damage. Damage is at an 12, mobility is at a 6, cc is at a 2.
Katarina has damage and mobility. Damage is at a 15, mobility is at a 5.
Ahri has true damage, CC, mobility, damage, sustain.
True damage is at a 2, damage is at a 7, mobility is a 7, cc is at a 2, sustain is at a 2.
Now these are made upnumbers, but you see the point. This is how league tries to balance kits. They have a power level they need to hit, and depending on the skills and what they offer, they sometimes front power heavier into certain skills. So, if we imagine everyone at 20 (barring patch-wise OPs), then giving Ahri her amp back would push damage up to say, a 9. That gives her 22, which is too much. She'd become OP.
Also,her win rate is 53.## %. You don't buff champs at 53% win rate.