Guys listen,
the only reason artifact portal and spellboost rune (and maybe sword) feels so broken right now is because they are the only completed deck. We are still in a one set format
> Rune
All 9/9 legendaries are for spellboost. Dirt rune has no pay off despite very solid early game line up.

> Portal
All the cards you need in artifact portal are something that can generate artifacts. Orchis is strong by herself. Eudie despite the shitting is still a 3/3/3 that draw one.

> Sword
Aggro face has all the tool they need to go wide and end the game on turn 5.
Midrange sword has amalia which is a solid 8 drop with or without sevo

> Dragon
They have a lot of storm but are just lacking ramp tool. There is no AIEEEEE or Roy, so they are lacking 50% of their ramp power. Only one discard fodder too.

> Forest
Roach is still performing well if you are autistic. Rose queen has no other support.

> Haven
Currently if you are not on storm then the only late game payoff is coc. Seraph sucks. 6/9 legendary are just for mid game board clear and the other guy still need better amulets.

> Abyss
Neither of their strategy are complete. Blood doesn't have enough aggro tool to consistently end games early. Shadow lacks good payoff other than Cerb who just do an aoe buff for 6. *cough* Eachtar *cough*

This will probably be fixed with the upcoming pack.
- Dirt rune will receive their late game payoff legendaries like Pursuit Golem, Levi, etc.
- Dragon will get more ramp tool.
- Control forest will get more defensive tool to drag the game until Rose queen drop.
- Blood Abyss will get more aggro legends, Shadow will get more boss monster to utilize their graves like Eachtar and such.

Clearly they already have a plan coming forward when the next 2 set are right in July and August. Just trust the plan.