I really do not understand what's going on with your deck. What are you trying to do?
1. Use of earthquakes to slow down the opponents process in wasting my hp during the early stage of the game, steal and explosion works for that too.
2. Use of Protect Artifact on my Quantum Towers/Electrums, Elite Garboids are already burrowed when summoned.
3. Miracle and Granite Skin are mainly used during middle and end phase of the game, i once had my hp at 10 then used 2 Granite skin+ miracle, boosting my hp to 264 + (my earth quantum amount was about 70, hp was originally at 120 cause i used shard of divinity)
Why slow down opponents when you can speed up yourself without all those random cards and random quanta? Quicksand alone can slow down opponents enough.
Why do you feel the need for permanent protection? I know there is permanent destruction out there but why not just ignore it?
Now the last one is probably the main intention of the deck. You probably want to create a deck that gives you heaps of HP and can also play Miracle to heal back massive amounts. You can do this with a simple duo of Earth and Light. I have made such a deck previously before, it works well but it was purely a deck out deck with no damage output at all. However, one could quite easily put in some Shriekers or flying Morning Glories for some invincible damage if desired. The problem is, though, that it is really slow and quite boring after you get over the initial stage of awe of how much HP you can get and heal.
In any case, what are you trying to do? We do not know this so we cannot really help you.
As I see it currently, it was a really badly balanced rainbow which is heavily concentrated in Earth. It just seems like you want to play an Earth deck but you want all these other random things to.
You have changed to more Earth focused and it is better now but there can be improvements.
First of all, Miracle needs 12 Light to cast. 6 Supernovas give you 12 Light. You need to get all 6 to even use it. Waste of a card.
Second, you only have 2 Quicksands. Unreliable to draw. Quicksands are only good in the early game. After a while people have heaps of towers and quanta and they don't care about losing towers.
Third, nothing is going to kill your creatures consistently unless it is an Otyugh. There are better ways to deal with Otyugh than Quintessence. I just feel there is overkill on Quintessense. The chance of burrowing should really be enough really imo.
