Is the Azuki mulligan like the redraw in One Piece?
YesYes. Both let you return your whole opening hand once and draw a new one. One Piece hands are 5 cards; Azuki hands are 7.
Mulligan in the Azuki TCG
You draw seven. Once, before play starts, you may put your whole hand on the bottom of your deck, draw seven new cards and shuffle. You can’t keep some cards and swap others.
The same
- All or nothing, once, before the game starts.
Different
- One Piece opens with 5 cards. The Azuki TCG opens with 7.
One Piece TCG: checked against the One Piece Card Game Comprehensive Rules. Azuki TCG: printed card text and the rules.