Balancing cards, multi-energy decks and game aesthetics

After playing many games on Pocket, there some issues/suggestions I would like to point out:

1. As already discussed by other users, multi-energy decks have a huge disadvantage due to the random sampling of energies. In the physical game, the player can choose how many copies of a given energy use. According to the pokemon pocket gameplay, this would correspond to choose different probabilities for sampling energies, different from the 50-50 imposed by default. For the moment, experimenting the use of multiple energies has big drowbacks due to this issue.
2. Available missions are completed relatively fast, and the only thing that remains is battling against other players, which however only gives experience. It would be nice that battling other players would have additional rewards, or that a ranking mechanics would be introduced.
3. There are two-cards combos that are extremely strong, which is perfectly fine. Yet, having the possibility to employ multiple copies of a same card, even between the most powerful, in a deck consisting of only 20 cards, make many players end up using copies of a few same decks mostly made of 2 pokemons, which makes the game boring and tedious. I have lost the count of the players I have encountered with a deck consisting of 2xGardevoir and 2xMewtwo Ex, or 2xMoltres Ex and Arcanine+Charizard. This makes players less prone to experiment with different decks, especially adding issue 1. Would be nice seeing some extra level of complexity that allows a more strategical game that moves beyond combos involving solely 2 cards.
4. Some types of decks seems to be less effective, such as grass decks. I have seen few players using them, trying to build a Butterfree + Venusaur combo, which since involves two level 3 pokemons, is not as effective as a Moltres Ex + Charizard or a Gardevoir + MewtwoEx. Another example of less effective grass card is Exeggutor Ex, mainly due to the high retreat cost, that makes him not as good as other level 2 pokemons such as for example Starmie Ex. This should be balanced, but at the same time I would avoid adding another powerful 2 cards combo and rather balance a bit the others.
5. Some supporter cards are not as good as the others. For example, Brock only allows to add a single fight energy to only two specific pokemons, which reduces the effectiveness of fight-type decks.
6. The gift mechanics should be improved. After the first few times a player thank you, there is no reward, and you have to collect empty gifts. A possibility would be to introduce a "likes" mechanics, with additional missions/rewards dependently on the amount of likes a player have.
7. The aesthetics of the game should be improved. Binders and Displays are hidden. Would be nice having a virtual customizable room, where decks, binders, displays can be placed.

Thanks for reading this feedback, I hope it can help or start a conversation,

NL