You could make Commander Tax somehow linked to the number of lands, but that would be completely irrelevant in the face of mana-producing artifacts
It means youll usually have a full army just by having Izoi enter the battlefield, and thats very hard to argue with
Hightide Hermit: [Category 2] ETB yield is 4 Energy for 5 mana, then you can spend 2 Energy to undo the Defender limitation
Goliath Daydreamer's last ability allows you to cast an exiled card with a dream counter on it only while the ability is resolving and still on the stack
If it doesn't, well, it's a casual card to play with Juggernaut (which, incidentally, hails from Limited Edition Alpha) and have fun
Newer cards dont have always have to be more powerful to see play