I don’t like to boost everything actually - if you want everything to get on par with the Whale you need to literally buff every non-Legendary card in the game (even staples like Groundshaker).
Not to mention that buffing everything also incites a huge cycle of powercreep which is… not ideal.
However, what I do think is that for every card that receives a nerf, another underused card should be buffed. That way you get more of a feeling of a metashaking effect (though I am aware this is not ideal either, but it is better than neverending powercreep).
Rebel Glider (Can now collect Faeria, +1 attack, +1 Faeria Cost); What is the point of this card? I get the flavour, but if it can’t collect, the point of a flying colourless card is moot. Maybe Path of Paradise shenanigans, but ehr… nah.
Tiki Totem (+1 life): Worse than its direct competitor, the Overgrown Tower, and useless outside of Pandora. Even then it requires to be drawn early. However, with its life increased to 4 it is out of range of a lot of structure removal outside of Firebomb (or Groundshaker + Flame Burst/Command, making it a lot more ‘sticky’.
Seed Sower (+1 life); currently useless, let’s give it a minor buff. I don’t want to make it cheaper as land ramp is strong enough as it is, but currently this creature is just bad. As such, I think making the creature itself better value is a better option.
Blazing Salamander (+2 Attack, requires a third mountain): Another creature that no one uses and can use a buff. This change would make it quite different from the Emerald Salamander, but at 4/5 it’s a much more dangerous creature. It costs an additional mountain to compensate, however.
Desert Twister (Gives +1 attack to targeted creature): Nobody uses Desert Twister -> buff Desert Twister.