Breast of the Phoenix

Chest equipment — Uncommon

Your Wildflame Phoenixes instead have, "Deathcry - Put this into your hand. Then, discard a card at random. This deals damage to each opposing champion and troop equal to the discarded card's cost."

Changes: Wildflame Phoenix
Slot: Chest
Rarity: Uncommon
Set: Campaign: Chapter 2
How obtained: Alachian Sea Pack

What it does is the game's own text; how it was obtained is from the owner's records.