18 lands is just not enough considering how mana specific your deck is. Especially when you factor in your only land filtering is a single
evolving wilds. Simply put, you're nearly never going to feel consistent when playing this deck. There will be turns when you do nothing because you're waiting on drawing the right land.
There is just no way you can build a 4 color deck and go super budget on the lands and have the deck be playable.
In terms of the deck itself, you really go deep into borderposts and your only win condition is beating in with
Greater Gargadon. The point of boarderposts is for you to have mana in order to cast spells after you've cascaded into
Restore Balance. You're not trying to cascade into it multiple times. It's about creating a board state in which you can win within 1-3 turns while severely limiting what your opponent can do. Simply put, what you're trying to produce a bunch of mana, only to cast
Greater Gargadon, when you should have a
Greater Gargadon ready to come out by the time you cascade into
Restore Balance.
Here is a boarderpostless version that I build a while back.Notice how there are multiple suspend creatures that can come out after I've cascaded into
Restore Balance.
This build also uses planeswalkers as an alternative win condition since they are not affected by
Restore Balance.
The idea is to create a boardstate you can win with after you've resolved
Restore Balance.
Boarderposts are a
contingency plan for decks that do use them.
Here is a more recent build that incorporates As Foretold.As Foretold replaces your need for borderposts since it lets you cast free spells. It also eliminates the need to cascade because you can cast no mana cost spells with As Fortold since it gives them a mana cost of 0.
I hope this helps.
Restore Balance is one of my most favorite archetypes and I love seeing more people try to make it work. Its a hard deck to build so kudos to you.