Suggestions for Champs

Hey everyone! First time making a discussion, so we'll see where this goes. And remember, these are just suggestions based on my own personal experiences in the game.

Alright, down to business. First order: Possible champ changes. I'll start with 5:

1. Reduce or change W. Reason: I feel it's a tad much to give him BOTH reduced damage and healing at the rate that it does, so I'd be cool with either removing the reduced damage, or decreasing the amount he gets to heal. I feel that healing should be something he uses with caution, not so he can tank turret shots after diving in to "Slay"ve the day.
2. Give all champions something like mana or energy to have to use abilities, no more free spells. Reason: Pure and simple, I don't see the balance in having a few champs like or be able to use abilities without even needing to think about mana or energy costs. In the case of Garen, he already is a pretty easy champ to use, and adding no mana costs to his abilities is just not balanced. Keeping track of that bar under your health is a big deal strategically, so it makes sense that every champ have that element of caution and awareness when doing their dirty deeds.
3. Reduced damage on Troll-Pole. Reason: Fizz is super-annoying, and pretty much a perma-ban for me, but the few times I see one in play, I'm constantly amazed at his damage output, above all other things. I get that he's a trickster, and I know Riot won't change the function of his pole, but I just have to draw the line at the amount of damage it does when he slams down. Even if it's a little reduction, it would still be better (And make more sense) than to witness a Fishy reenactment of Hiroshima.
4. Reduce range or damage on Q in burrowed form. Reason: I've played against a few in the top lane, and the biggest frustration I've found is her ability to poke at epic ranges, and for so much damage. I see Rek as a melee champ, pure and simple. She has great escape, great damage, and even healing, so she's one versatile Void Monster. But when I'm pushed up against turret trying to get rid of enemy minions and she's literally poking me from beyond the wall next to Blue side top turret, that feels like too much. At that point, there should be an inherent risk of trying to cause more damage to a champ who is that harassed, meaning up-close fisticuffs. Now, this was happening in the early game, so it isn't like she had scaled well into late game or had a chance to get the right items going.
5. Increased cooldown on Q. Reason: I like that he can go "Boop!" and pop someone up into the air. I really do. However, being able to do so 5 times in the span of a teamfight because of good cooldowns on top of his healing and damage doesn't add up for me. There hasn't been a game I've had against a where I haven't felt that his pop-up was more abused than anything. Maybe I'm crazy, or a whiner. All I'm suggesting is a little more time between activations and leave it at that. Either that, or give him other cool things to do with the activation. For example, 1st activation: Pop-up. Second activation: reduce opponents movement speed by whatever amount for however long. Third activation...uh...hell I dunno. you guys come up with something. Then it cycles back to the pop-up again. I think it would give him more strategic value, while keeping him fun and interesting. What say you?