The top ladder decks are going to consist of only the decks used on the last day of the season because this is where all the players try their hardest to get into top 200 and get that #1 spot.
And the top challenge decks are going to come from all the decks that won the 20-Win Challenge (Note: The 20-win data only includes about 34% of all the decks that won the 20-win challenge due to limited availability of the data).
Top 5 Ladder Decks
Giant Double Prince (8.4%)
X-Bow Cycle (5.2%)
Giant 3M (5.0%)
Bridge Spam (5.0%)
Mortar Horde (4.8%)
Hog Executioner (4.3%)
Top Ladder Decks for Each Card
If there is a specific card you want to use on the ladder, listed below is the strongest decks that use a certain card (everything is ordered by decks that have the highest usage for most cards and in general order or most used to least used).
Example (1): Giant Prince Bait is the highest deck because it has the most separate cards that are used the most in this deck (9 of them).
Example (2): Although X-bow Ice Wizard and Golem Freeze have the same number of cards that are most used in the respective decks (only 1), X-Bow Ice Wizard is ordered higher because it had more usage in the final 24 hours of Global Ladder.
Example (3): Inside of Log Bait, Inferno Tower was used more often than Tesla, so it comes before Tesla (Inferno Tower OR Tesla instead of Tesla OR Inferno Tower)
Spear Goblins, Bats, Zap, Goblin Gang, Giant, Goblin Hut, Dark Prince, Poison, and Prince: Giant Prince Bait = Giant, Prince, Zap, Spear Goblins, Bats, Dark Prince OR Goblin Hut, Goblin Gang OR Mega Minion, Poison OR Fireball
Inferno Dragon (174 Wins), Arrows (102 Wins), Magic Archer (36 Wins): Bridge Spam (101 Wins) = Bandit, Battle Ram, Dark Prince, Zap, Ice Golem, Inferno Dragon, Fireball or Poison, Minions OR Arrows OR Ice Spirit OR Magic Archer
Poison (565 Wins), Goblin Hut (262 Wins), Pekka (170 Wins), Royal Ghost (162 Wins), Zappies (150 Wins), Flying Machine (133 Wins): Pekka Hut Control (80 Wins) = Goblin Hut, Miner, Zappies, Poison, Royal Ghost, Pekka OR Fireball, Log OR Zap, Air Sweeper OR Mega Minion
Mega Minion (395 Wins), Guards (246 Wins), Minions (190 Wins), Balloon (105 Wins), Tombstone (100 Wins), Lava Hound (98 Wins): Lavaloon (54 Wins) = Lava Hound, Balloon, Fireball, Tombstone, Mega Minion, Guards OR Goblin Gang, Zap OR Arrows, Minions
Electro Wizard (123 Wins), Graveyard (89 Wins), Musketeer (73 Wins): Graveyard Hut (54 Wins) = Goblin Hut, Graveyard, Guards, Ice Golem, Mega Minion, Poison, Log, Electro Wizard OR Musketeer