My suggestions: 
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Where pekka and evo pekka buff?*
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Where is tornado buff (reversion)?*
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evo wizard buff is not enough and is not the way to fix it. Both wizard and evo wizard need a considerable hp buff.*
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freeze need a considerable damage buff (take out spear goblins at least) or any type of buff.*
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chef tower need a buff (more hp and quicker cooking time when only on chef tower left, and it will fix the chef tower)*
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ram rider sight range or pull range to buildings should be reduced (should be same as hog rider).*
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cannoneer may need a buff, a tower hp buff I suggest which will fix its extremely low usage rate for a long period of time, otherwise a dps buff will be too op.
*Explanations below:
- An hp or range buff will fix both base pekka and evo pekka. Restore their lost hp which is around 6% more hp. They need both more range/hp and damage buff. But only a considerable hp buff is better and will fix both base pekka and evo pekka.
Pekka hp is supposed to be 3960hp, should be restored. Pekka cannot survive evo megaknight plus prince push or other type of push now, which is not balanced. Pekka is 7 elixer card that is useless on offense, it is the easiest card to defend. Air troops, buildings, ranged units, swarms, ice golem and melee cards can easily defend pekka, which make the 7 elixer investment you spend feel useless. Pekka always does not survive enough to land the final hit when it reaches a tower or a ranged troop on offense. That hp that pekka lost is necessary for the card to function and will fix base pekka and evo pekka’s problems.
-Tornado need a buff (nerf reversion) Most people agree on this (and in the poll made about 2 months ago about the tornado nerf suggestion). If it must be nerfed, then pull strength should be slightly nerfed instead. Not being able to take out bats and spear goblins is really a problem. Many decks do not use a small spell with tornado so they cannot take out spear goblins and bats.
You need to overspend in order to use tornado. And Swarms and bait is everywhere. More expensive decks cannot use tornado now which is problem.
If any tornado must be nerfed then the pull strength to the medium/small size troops should be reduced. Or just make tornado less strong on pulling when there are too many troops inside the tornado.
The damage of tornado should be reverted and is necessarly, and tornado should be a mainly used spell like log and arrows in dealing with swarms. Void need to fixed as well, tornado and void are really unique spells and must be fixed to be viable to most players.
-wizard and evo wizard They are top 3 worst card. Either more hp, 6 tile range, bigger splash radius, or more dps. For its high elixer value, it is the most fragile card and has the worst stats for its elixer cost. Wizard and evo wizard really need an hp buff, they are ranked the second worst evolution by pro players. The base wizard especially need an hp buff to be in par with witch or hunter. Any buff will help, it is not a relevant card at top ladder for a very long time and has the lowest usage rate even in other ladder catogories, it is same as barbarian hut. Executioner, firecracker, goblin stein all overshadow wizard completely.
-Freeze need a damage buff so it can at least take out spear goblins and perferably have same damage as snowball. It is overshadowed by all other spells and have not been used a lot in top ladder for a very long time. Freeze has the least usage rate out of the regular spells (both in ultimate champion and top 1000).
-chef tower dps is way worse than princess tower since the last nerf. It is like a dagger duchess damage when out of daggers. It made the chef tower very weak on defense that even its offensive abilities does not compensate. chef tower slight buff (maybe more hp) and quicker cook time when only one chef tower is left, should be decent.
-ram rider gets pull by buildings played in the middle near the opposite lane, she should not get pulled by that just like hog rider. Otherwise how can ram ridee ever break through when they defend by placing a building the whole match, ram rider usage rate and effectiveness dropped a lot.
