Exchange (換装 ; kansou) is a keyword introduced in SD52, exclusive to Spirit cards from the Gundam Seed series. There are two wordings for this keyword:
- Exchange: Striker Pack - When your "Strike Gundam"-named Spirit attacks/blocks, this card in your Hand can change places in refreshed position with it. "Exchange" can only be used once per turn.
- Flash - Exchange: Silhouette System (Either Attack Step) By putting a core from the Void to an "Impulse"-named Spirit you control, this card in Hand changes places in the same state with it. Exchange can only be used once per turn.
Noticeable official Q&A
Q10: Can your Spirit card with "Exchange" change places with a Spirit with a "cannot be returned to hand" effect?
A10: No, it can't.