Zoro-rush is declared the strongest deck in OP2 meta (Tier-0), this deck won so many big tournaments, including the championship that Bandai hosted in Japan. Both the winner and runner-up decks are Zoro rush deck.
Here is the 1st-place deck:
Why Zoro deck is strong
Onepiece Card Game is the game that relying on Don!! cards to play the character or event or stage cards. So the cheap-cost rush deck like Zoro totally has more advantages compared to other decks.
One thing in the OPCG that we don't like is the limited draw power, but thanks to mulligan we can avoid brick-hand for our first draw. Still, we need more cards to use when countering opponent's attack.
For this Zoro deck, except for Edward Newgate who is a solution for late game, every other characters play-cost are just 3 or less, many of them give 2000 counter and enough power to attack opponent's character thanks to the buff from Zoro leader.
There is no blocker in this deck, so it need to be rush and fast enough before opponent can setup board to block the Zoro attacks or clear our board.
The character like ST4 King purple or OP1 X. Drake green are the threat to this deck. Green Wano Country deck now is in spotlight because the great level of controlling the board, but regarding of speed, Zoro rush deck is still faster in early game.