Apex Legends has introduced several new pack types and mechanics—such as (often called "repacks" by the community) and Pack Upgrades —that fundamentally change how players acquire high-tier loot like Heirlooms and Prestige skins. Retro Packs (Event "Repacks")
Retro Packs are a way for players to earn Heirlooms or Prestige skins from past collection events. Apex Repacks
You are guaranteed Heirloom Shards once every 500 packs if you haven't received them sooner. Apex Legends has introduced several new pack types