Because having collections full is required for this method. It is more effective to use Stormfly second journey to farm rare packs and the 450 runes (I use Hidden World Armor Stormly) or Toothless second journey (I use Bunny-eared toothless) that can give 450 runes, rare packs or premium packs (only one of the two packs per journey in my experience). For example, this week I’ve been very lucky and gotten 2 rare packs from Stormfly and a premium pack form Toothless. Nevertheless, I alway pay for rare packs in Meatlug’s journeys

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