Tranquill is card #79 of 108 in Roaring Skies (2015), a Uncommon illustrated by sui. At about $0.46 it is the #87 most valuable card in the set. In a Roaring Skies booster it turns up about once every 10 packs. It is one of 10 Tranquill cards printed so far.
2011Black & White
2012Boundaries Crossed
2015Roaring Skies
2019Unified Minds
2020Rebel Clash
2022Pokémon GO
2024Temporal Forces
2025Black Bolt

















See the full Roaring Skies card list
An ungraded Tranquill from Roaring Skies sells for about $0.46. A PSA 10 is worth more, roughly $2.30 by our estimate, and a PSA 9 around $1.06.
It is a Uncommon, and it shows up about once every 10 Roaring Skies packs.
sui drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Roaring Skies 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.