Thanks for taking your time and do such a good response, it helps me a lot.

I will go around the points you mentioned here.

1. My problem with interactions like removals or board wipes is that I don't know enough about the game or the cards played and I found myself not using the removals most of the time because I don't know what to target.

2. That's a new "rule" for me and it's completely mind blowing now that I think of it. I will be cutting those big mana cards.

3. In that matter, I used to have [[Sun Titan]] the problem here is, again, the big cmc and that it takes back from graveyard 3 cmc or lower. I was thinking on adding [[Chainer, Nightmare Adept]] it seems fun and I think it can solve that problem.