Only cards from Majestic Dawn, Legends Awakened, Stormfront, and Platinum are allowed. However, Energy from previous sets are also allowed.
x3 Turtwig (Lv. 9) (MD)-A 60 HP basic with water resistance that pretty much can't be confused. Needed for evolution.
x2 Grotle (Platinum)-Absorb is decent, a two for 30 that removes one damage counter from Grotle. Razor Leaf is also a decent attack, a three for 60. Also has resistance to Water. Needed for evolution.
x1 Torterra (Platinum)-140 HP. Green Blast is very powerful or it can be. A three for 40 that does 10 more damage for each Grass energy attached to all my Pokemon, this card can end up doing a lot of damage (up to 260 with this deck) with help from Shaymin. Soothing Scent is solid, a four for 80 that puts the foe to sleep.
x4 Cherubi (Stormfront)-Nap removes two damage counters from Cherubi for no energy. And Bullet Seed can do 40 damage for one energy. Add on Water resistance and you have a solid basic. Needed for evolution.
x3 Cherrim (Stormfront)-If I get three of them out there I can have my Grass Pokemon doing 30 more damage with their attacks. And Cherrim is also a great attacker. Salty-sweet Pollen is a zero for 20 that removes two damage counters from one of my Pokemon. With Sunny Day, this attack does at least 30 damaghe, which is ridiculous for no energy. Solarbeam is a three for 50 (60 thanks to Sunny Day.) Also has resistance to Water.
x2 Ledyba (LA)-Resistance to Fighting. Needed for evolution.
x1 Ledian (LA)-Comet Punch can end up doing 80 damage for one energy. Baton Pass is a good two for 50 that has a Switch effect and charges up the next Pokemon. This is also a great way to keep my energy in play for Torterra. Ledian also has resistance to Fighting.
x2 Shaymin (Lv. 44) (Platinum)-An 80 HP basic with resistance to Water. Energy Blow is a zero for 10 that does 10 more damage for each energy attached to Shaymin. Aromatherapy is decent, a three for 40 that removes two damage counters from each of my Pokemon.
x1 Shaymin Lv. X (Land Form) (Platinum)-Adds on 40 HP to all my Grass Pokemon besides Shaymin, although this card adds on 20 HP to Shaymin. Seed Flare is an incredible attack. A three for 40 that allows me to put on my Pokemon as many Grass energy from my hand as I want. AND THEN IT DOES 20 MORE DAMAGE FOR EACH ENERGY I ATTACH! Amazing.
x4 Carnivine (Lv. 38) (Platinum)-An 80 HP basic with Water resistance. Stretch Vine does 10 damage to two of my opponent's benched Pokemon for one energy. Absorb is a decent two for 20 that removes two damage counters from Carnivine and Vine Extract is a two for 30 that can burn and poison.
x4 Energy Search (MD)-Gets me energy.
x4 Buck's Training (LA)-Drawing and a Pluspower effect.
x4 Super Scoop Up (MD)-Returns a Pokemon and all cards attached to it to my hand. Yes, this means energy go back into my hand for use with Shaymin.
x2 Warp Point (MD)-A Switch and Gust of Wind in one card.
x1 Dawn Stadium (MD)-Heals and removes the Special Conditions of my Pokemon. This works great with Shaymin for a mass healing of my Pokemon.
x22 Grass Energy-Needed.