The Promo Pack 2: Feather Add-on for Spirit Island has 6 achievements.
Win at least one game with each of the 10 Spirits from Nature Incarnate and Promo Pack 2: Feather.
Defeat both Adversaries and all 4 Scenarios in Nature Incarnate and Promo Pack 2: Feather.
Use each of the 95 Powers available in Nature Incarnate and Promo Pack 2: Feather.
Reach all 140 Elemental Thresholds available in Nature Incarnate and Promo Pack 2: Feather.
Defeat both Adversaries from Nature Incarnate and Promo Pack 2: Feather on Level 6.
Win at least one game with each of the 5 Aspects from Promo Pack 2: Feather.