# 2025 One Piece -LEGACY OF THE MASTER- [OP-12] #OP12-017

> The One Piece Card Game OP12-017 Color of Observation Haki is a Red Event card from the 2025 Legacy of the Master set, designed to enhance deck strategy.

Canonical URL: https://supercatch.com/product/one-piece-legacy-of-the-master-op-12-color-of-observation-haki-op12-017-uc

## Identity

- **Year**: 2025
- **Manufacturer brand**: One Piece
- **Set / series**: -LEGACY OF THE MASTER- [OP-12]
- **Card number**: #OP12-017
- **Product type**: TCG_CARD

## Description

The One Piece Card Game OP12-017 Color of Observation Haki stands as a pivotal Red Event card within the 2025 Legacy of the Master expansion. As a Uncommon (UC) rarity release, this card is essential for players seeking to optimize their deck's resource management and strategic depth. The card features the Former Roger Pirates trait, connecting it to a legendary lineage within the One Piece universe and offering unique synergy for specific archetypes. Functionally, the card provides a powerful effect during the Main phase. By sacrificing one active DON!! Card, players can target their Silvers Rayleigh to look at the top four cards of their deck. This allows for precise filtering: you may reveal a Red Event or a Character card with a cost of three or more to add directly to your hand, while placing the remaining cards at the bottom of your deck in any order. This flexibility makes Color of Observation Haki a versatile tool for deck builders looking to control the flow of their game and secure high-impact plays. The OP12-017 card captures the essence of observation haki, a crucial ability in the series, translating it into a mechanical advantage. Whether you are building a competitive deck or expanding your collection of iconic One Piece cards, this event card represents a valuable addition. Its straightforward yet impactful effect ensures it remains a relevant piece in many Red-based strategies. The OP12-017 Color of Observation Haki is a testament to the strategic depth of the One Piece Card Game, appealing to both casual fans and dedicated TCG enthusiasts alike.

## FAQ

### What is the function of the Color of Observation Haki card?

It is a Red Event card that lets you give a DON!! to Silvers Rayleigh to look at the top four cards of your deck and add a Red Event or Cost 3+ Character to your hand.

### What traits does the OP12-017 card feature?

The card features the Former Roger Pirates trait, which is significant for synergy with other cards in the Legacy of the Master set.

### Is this card suitable for competitive deck building?

Yes, its ability to filter the deck and retrieve high-cost characters or events makes it a strategic tool for various Red-based archetypes.

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Last verified: 2025-11-29.