Chemicritter Carbo Crab is a great search card, because it can search out Any of your Gemini monsters while also setting up your graveyard. This monster is quite lacking in power, but if you manage to let it stay on the field long enough you could get some amazing card advantage out of it. What you can do is, send Gigaplant from your deck to the graveyard and add Blazewing Butterfly to your hand.
The best way to summon Gigaplant is through Rose Lover. Remove from play Rose Lover in your graveyard to special summon Gigaplant or any other powerful plant type monster in your hand, then that special summoned monster will not be affected by trap cards for that turn.
Another way to special summon Gigaplant is through the Blazewing Butterfly/Supervise Combo. Summon Blazewingwing Butterfly and equip it with Supervise. Then with Blazewing Butterfly's effect send it to the graveyard bring along Supervise. Now you can special summon Gigaplant with it's effect active, and with Supervise revive another Gemini monster in your graveyard.(i.e. Another Gigaplant) Then with the active Gigaplant you can special summon Marina, Princess of Sunflowers from your hand or graveyard.
Marina, the Princess of Sunflowers is a powerful 2800 ATK monster that you can special summon with Gigaplant. Her effect also makes it when your opponent destroys your monster either by battle or with card effect, you can turn it into a 1 for 1 trade and destroy their monster also.