1- When you start your account, you see the "Choose your element" screen. It needs 1-2 lines telling the personality of the elements, just like in EtG. Here are my thoughts:
:earth Earth is the element of the defense. Its' creatures can protect themselves and they can delay opponent's creatures for a long time. Earth elementals can also increase their maxium HP.
Shows: Titanium Shield, Shrieker, Titanium Shield
:air Air is the element of lightness. It has cheap shields and creatures that can double their attack. Air elementals like their games be fluid, simple and without many troubles.
Shows: Fog shield, Sky Blitz, Whim.
:light Light is the element of protection and divinity. Light creatures have high HP and it has spells and abilities that heals them. It can also make your hand immune to certain effects.
Shows: Light Dragon, Miracle, Guardian Angel
:darkness Darkness is the element of the tricks. Darkness elementals can drain HP and quantum from the opponent, steal their cards and reduce their maxium health.
Shows: Cloak, Steal, Vampire
:fire Fire is the element of destruction. Its creatures have very high attack and are more fragile. It has also a lot of cards that damage the opponent's creatures.
Shows: Rain of Fire, Crimson Dragon, Seraph
:water Water is the element of versatility. Water elementals like freezing opponent's creatures and using the other element to grant them various powerful effects.
Shows: Siren, Trident, Clepsydra
:time Time is the element of speed control. Time elementals like drawing multiple cards per turn. They can also make opponent's creatures stop attacking and send them back to their hands. It has also a special type of poison.
Shows: Eternity, Dune Scorpion, Sundial.
:aether Aether is the element of space and dimensions. It can copy opponent's creatures and the next card they will draw. They also have immortal creatures.
Shows: Parallel Universe, Phase Dragon, Fractal
:entropy Entropy is the element of randomness. It can scramble the opponent's quantum, generate powerful mutants, random creatures, effects and cards.
Shows: Discord, Antimatter, Alchemist
:gravity Gravity is the element of order. It has huge creatures that can use as shield, eat smaller creatures, drain opponent's quantum and bypass shields.
Shows: Otyugh, Gravity Shield, Titan
:life Life is the element of the healing. Life elementals like having high HP and attacking with lots of small, cheap creatures. They can also multiply their creatures and make them attack multiple times.
Shows: Forest Scorpion, Alpha Wolf, Adrenaline
:death Death elementals gain advantage of the death generating quantum, producing creatures and increasing it's defense. It is also the element that controls the poison.
Shows: Plague, Vulture, Aflatoxin
2- Remove the "Random" starter element with the packs. A new player just won't know what to do (I made an alt and said "Het fippe, what's what this? I have no deck!" It's fixed if the tutorial explains it well.
3- We must think on a way to mark what is each button in the menu.
4. We must find a non-annoying way to explain the basic in-game stuff. Maybe adding a super noob tutorial level with the labels like Zanz did?
I'm against making like other games that don't let you do a single thing outside clicking where they want while they explain you what's each thing.