Seaking is card #28 of 162 in BREAKthrough (2015), a Uncommon illustrated by Kyoko Umemoto. At about $0.64 it is the #116 most valuable card in the set. In a BREAKthrough booster it turns up about once every 15 packs. It is one of 16 Seaking cards printed so far.
1999Jungle
2001Neo Revelation
2005Deoxys
2009Supreme Victors
2015BREAKthrough
2020Sword & Shield
2024Twilight Masquerade
2026Pitch Black

















See the full BREAKthrough card list
An ungraded Seaking from BREAKthrough sells for about $0.64. A PSA 10 is worth more, roughly $3.20 by our estimate, and a PSA 9 around $1.47.
It is a Uncommon, and it shows up about once every 15 BREAKthrough packs.
Kyoko Umemoto drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open BREAKthrough booster packs in your browser with the set's real pull rates and keep what you pull in a digital binder. No real cards, nothing to buy.