What is the best deck for the 20 win challenge?

Any advice? I want a deck below 4 elixir so pretty quick

the drill bandit deck

Is it better than ryley's logbait deck with mighty miner?

definitely

that deck should be like #5

Like which deck do I use: Drill, Bandit, Rocket, Fire spirit, Inferno Tower, Skeletons, Bomber, Log. or Cannon, Dart Goblin, Firespirit/Mirror, Goblin Barrel, Mighty Miner, Rocket, skeletons, log

Ah okay i sent my message at the same time as you so i didn't see your new message

also in ryleys deck is it better to use fire spirit or mirror

in terms of good decks, I think it's

1. drill bandit

2. drill wall breaker

3. hog eq with queen and giant skeleton

4. mortar with queen

5. rg lightning with queen 

6. log bait with mighty miner

I like mirror better

So I found this deck by some youtuber: Bandit, Drill, Fire spirit, log, rocket, bomber, skeletons, inferno tower. 
I feel like cannon would be better than inferno, but idk cause then killing tanks could be hard. Thoughts?

Edit: Also, why is bandit so good in this deck? Not the first card I'd think youd put in 

that is the exact deck I was talking with "drill bandit"

Bandit is good because of her high pressure 

Since she can actually single handedly defend mega knight, she can sometimes qualify as a mini tank.

But it's mostly for her pressure and cheap cost