These balances look really good. I have some comments for SC
I don’t think the Barb Barrel nerf is necessary. Especially a damage nerf. I think a big spike to its usage is mainly due to its ability to snipe LP after it gets the guardienne. Barb Barrel itself is not in need of a nerf imo.
Bowler. As a Ram Rider player I hate that this card is everywhere, so… nerf, good. 
Goblins: while the two elixir goblins are pretty OP in a lot of scenarios, it’s not right to throw cards like Barrel, Gang drill and mortar under the bus as well. I get that it’s hard to nerf goblins without nerfing the other goblin cards, but SC has nerfed them before without collateral damage from other cards featuring them. Evo Mortar is prolly the most balanced evo (maybe a little underpowered when compared to others), barrel has been suffering since goblins first hit speed was reduced from .2-.4. Goblin gang already got caught in the crossfires with goblin giant.
My recommend nerf for goblins is to reduce their deployment time once again or to postpone the nerf until a better solution is created
Guards: if the guards buff takes place we won’t even need goblins anymore. This buff is way too much and unnecessary.
Evo archers: Yes. I like it. They are way to powerful in this meta and the last nerf didn’t do much.
LP. The last nerf toned him down quite a bit but it’s not quite enough. I think it should die to fireball. Simple as that.
Goblin Drill. I love this rework. Hope it comes into effect.
Champs: AQ. Not necessary. I think AQ is good as it is, just overshadowed by LP. GK, it needs a buff. It’s been suffering.
SK. It’s weird playing against graveyard when they’re not playing SK - Bring Graveyard Sk back 
Giant skelly is strong and weak at the same time if that makes any sense. It’s incredibly powerful in the deck it works in - but I don’t see it much. Let’s bring everyone’s favourite giant tank back.
Bomber. Bomber has a reputation for being the most under appreciated card. Let’s make sure it earns that title.
Rage is really annoying - especially with Goblin Giant. A nerf to it is a nerf to Goblin Giant.
Wish list.
PEKKA buff. Damage +7%. It need to be able to kill cards like witch hunter and fishboy. It’s been weak for a long while and I don’t know anybody that hates PEKKA. Let’s make sure the best Mom in CR can make people go “oh god” when they see it and not “yes let’s go it’s not Goblin Giant.”
MA: its last nerf killed it and it wasn’t overpowered in its last state. Revert or partially revert pls.
LP: Dies to fireball.
Goblin Giant: HP nerf