Color bomb 
You combined it with striped candies and jelly fishes, you can complete those levels in no time.  

To finish my real feelings on my Kingdom community that promised me  free gold bars from candy crush saga. I had not to purchase any bonus or extra lives. That it candy crush saga offers you to buy through your email account. I have never **EDIT: Rude**  free gold bars free the kingdom  somebody that a fake member who probably works for owns this site are posted these all booster to and lives to win I received not  **EDIT: Rude** that makes my saga game win with the post that this fake site it's all lies. They will say anything to keep the alive active on internet. They getting  rich 🙃😬 **EDIT: Rude** that's my feeling or this said 
Sitting on my community kingdom wasting my time on this site. That promises so many things for you  to have free game benefits for your saga game. Well lie once shame on you. Continue to see more lies of gifts for you  still you get it the next . Now it's shame on me for still being a member of the Kingdom I'm now last word ii post. Good-bye to all these empty promises  from a fake King and  his fake kingdom for his fake for of the true candy crush saga players 💯💯👍🤢😷🤧😱💯👹☠️💯👎👎🦂🕷️🐷🐷🕧🕛📵📵📵🔇📴📴🛂  **EDIT: Rude**

Pounawea said:

Also, here are other open questions that I'd love to have your feedback:

• Which boosters do you never use?
• Do you understand the different functionalities and the best ways to of all these Boosters? 
  
• Do you prefer boosters in other games and think they'd work well in Candy Crush Saga?
• If you could create a new booster - what would it do?
  
  

Don't be shy and share your opinion with the community! Thanks a lot in advance 🙂

I was thinking of a booster that could destroy all the bombs when you use it.

Best all around booster for every level

I love all the boosters