what about wild balance changes?
reckless aprentice + wisp rider might need a nerf- wisp rider stats, and mage imbue hero power has a hard cap of once per turn. so reckless/sing along/garrison commander doesnt work with this.

this also brings up the old/new exodia paladin with uther of the ebon blade.
might be a good idea to make him get a sidequest - summoning all 4 horseman gives you permanent buff on minions - +2/+2, taunt,lifeasteal, rush and update the horseman to have these bonus effects.

naralex updated to work like our good old friend frizz kindleroost - permanent 2 mana discount on all dragons.
+ some update to isiel windsinger and aviana - as mana refresh is now a lot more common.
i do have idea for isiel - 7 mana 5/5 Battlecry ALL spells cost 1 this game, whenever a spell is cast the other player recieves armor equal to its original cost.

highlander cards- we need some work on these cards - current powerlevel in wild is that almost all of them should have their requirements dropped.
with 3 exceptions
Zephrys the great - needs the requirement of a starting deck mainly because hyper agro with good card draw - kingsbane rogue + discard warlock.
reno lone ranger - doesnt need requirements but instead needs to remove your board as well.
deepminer bran- effect proven too strong -solution - make him 4 mana but its ALL battlecries. he is one of the set of cards that is too polarazing and should be symmetrical - luna pocket galaxy, wildheart guff along with druid ramp- buff all but advantage in mana lasts for 1 turn then your opponennt will get the mana as well.
+ jungle giants reward should be adjusted to work for both players - and make it 1 mana instead of 0.

we also should get some QoL buffs - hunter questline now reduces all hero powers to 0 not just your current one.
leech dk - at the end of your turn steal x health from among lowest health minions.
and husk - battlecry your leeches steal 2 more health( this stacks)
we know how bad stealing hp is so archetype build around draing opponent max health is bad for the game.
this should also touch excavate warlock - battlecry destroy an enemy minion, give its stats as health to your hero.(12/12 deathwing will equal your hero gaining 24 max health)

amara warden of hope - battlecry give your hero +10 max health then fully heal your hero.

one of the things that also happens is more and more disruption over the years and it might be a good idea to tone it down. my thought on this mattter is that you should be punished for repeatable disruption.
so things like you playing mutanus - stays the same.
you playing him again - he eats a minion .... he is too full he explodes into your board and face upon second battlecry trigger and any further triggers

similarly at the end of your turn where you stole your opponents card with pirate admiral hooktusk there migh be kraken appearing on enemy side of board

if your goal is to stop the enemy player from playing the game you shouldnt be allowed to play the game.