Hello, it's time for an update.
I've been working for some time in my sideboard. It was kinda hard to get cards for it, but I ended up making this one:
Collective Blessing - High CC, but maybe I can use it if the opponents deck isnt that fast. If I get enough time to sit and relax with spare 6 mana, I will use it.
Intangible Virtue - The Vigilance for all my tokens is worth the 2 mana. Although, still on sideboard, since I will have to take some important part of the deck to put this on the Main.
Phytoburst - The +5/+5 may be useful for 2 mana, even better if used on Loxodon Smiter paired with Silverblade Paladin.
Sigarda, Host of Herons - More like a couple for Emmara Tandris, useful to keep the tokens protected from murdering cards. Maybe I can use one of this in the slot of Emmara Tandris.
Trostani's Summoner - Now that one is a card that I'm willing to put on Main, but due to the high CC I'm avoiding it by now. The 7 mana CC is too high, I'll have to take out something like Emmara Tandris to use this. I need some playtests to see which one is the most useful on battle.
Slime Molding - I found that card pretty useful since it have the possibility to enter the battlefield with high power and resistence. Also, it enters the battlefield already as a token, so I can populate it too. Same reason as Grove of the Guardian.
Sundering Growth - It's on my Sideboard since the possibility of metting opponents with Ratchet Bomb became real. Also it is going to be useful because of the populate. But it is going to lay on Sideboard.
Voice of Resurgence - Good card, good effect, too expensive. It is going to be on Sideboard, even still I don't have it, but guess it's good to plan on getting 1, 2 at the most.
Also, on the Mainboard, I took of the 2 Centaur Healer and added 2 Silverblade Paladin. Considering things, the double strike seemed to be more useful with a Loxodon Smiter than 3 life points of the Centaur Healer. I did some change on the Lands too. Now I'm running with 19 Lands. I started using the rule of "nonland mana producers allow you to low you base mana production". Since I'm using 3 Avacyn's Pilgrim and 3 Arbor Elves (6 mana acceleration) it allows me to get rid of 3 basic lands. Took of 2 Forest and 1 Plains to add 3 Vitu-Ghazi Guildmage. It's the most expensive Centaur token creator, I guess, but I think the possibility of having populate available every turn is worth it.
And that is all. Any discussion, points of view, tips and critics are welcome.
Thanks for the feedbacks, guys.