Flow of Knowledge #381 – Promo Pack: The Brothers' War (Promo)

Magic: The Gathering · Promo Pack: The Brothers' War · Promo

Flow of Knowledge #381 Price

Flow of Knowledge (#381, Promo) from Promo Pack: The Brothers' War is worth $0.55 to $1.25 in Near Mint condition on TCGplayer as of October 4, 2026, depending on the printing (Normal to Foil). On Cardmarket, Europe's main marketplace, the Foil sells for €0.56.

Near Mint · TCGplayer: $1.25
Near Mint · Cardmarket: €0.56
30-day change: −1.6%
Printings: 2

Scan it with TCG Vault

Flow of Knowledge prices by printing

Near Mint market prices, updated October 4, 2026.

Printing	TCGplayer (USD)	Cardmarket (EUR)
Foil	$1.25	€0.56
Normal	$0.55	€0.41

TCGplayer market price and Cardmarket price for Near Mint English copies. They are two separate markets, so the euro figure is Cardmarket's own price, not a conversion of the dollar one. Source: TCGplayer, Cardmarket.

Card details

Set: Promo Pack: The Brothers' War
Card number: 381
Rarity: Promo
Released: November 18, 2022
Illustrator: Tuan Duong Chu
Type line: Instant
Rules text: Draw a card for each Island you control, then discard two cards.
Flavor text: "Focus your mind. Do you hold a piece of the ocean or a thousand drops of rain?"
—Hurkyl

Flow of Knowledge: common questions

How much is Flow of Knowledge #381 worth?

Flow of Knowledge (#381, Promo) from Promo Pack: The Brothers' War is worth $0.55 to $1.25 in Near Mint condition on TCGplayer as of October 4, 2026, depending on the printing (Normal to Foil). On Cardmarket, Europe's main marketplace, the Foil sells for €0.56.

What set is Flow of Knowledge from?

Flow of Knowledge is card 381 in Promo Pack: The Brothers' War, released November 18, 2022. Its rarity is Promo. Illustrated by Tuan Duong Chu.

Is Flow of Knowledge going up in price?

Over the last 30 days the Near Mint Foil price on TCGplayer moved from $1.27 (September 6, 2026) to $1.25 (October 4, 2026), a change of −1.6%. The 30-day low was $1.25 and the high $1.27.

How do I check what my Flow of Knowledge is worth?

Scan it with the TCG Vault app on iPhone: it identifies the card from the camera in seconds and shows its current market price and price history, then keeps it in your collection so you can follow its value.