Guild seals are a special currency that can only be earned in a guild, and only used on Guild Keys - in the same way Glory can be used for Glory Keys. Each Guild Key costs 20 seals. What makes Guild seals special is that the earnings of all players in a guild are counted together, and reaching milestones increases the value of the contents of the Guild Keys.
Guild Keys are also the only source of a set of troops called Guild Guardians.
Guild seals can be earned from the following activities:
- Daily login
- Gaining a PVP Tier
- Winning a Ranked PVP Battle
- Winning an Explore Battle on Max Difficulty
- Gaining a Level
- Having a Perfect Arena Run
- Completing a Treasure Map with 60 or more turns
- Winning a Battle (any type - stacks with other battle bonuses)
Each player is limited to 1,500 seals per week, and each guild is limited to 40,000 per week (although players can earn the rest of their own 1,500 even if the guild has reached its max for the week). The exception is that each player can purchase additional seals for themselves, which can exceed the 1,500 limit, and also earn everyone in the guild some Guild Keys; these purchases are limited to one of each tier, per player, per week.
Guild chests are unique in that their contents' value increases as a guild's accumulated Guild seals increase during a week. Each milestone raises the rarity of troops available in the chests for the entire guild, making it ideal to wait until the end of each week to open these chests.
Additionally, the guild chests have around a 50% chance to yield a Guild Guardian troop. These troops start off as Commons, but possess the traits of Legendary troops and grow much more than standard Commons as they are leveled up and ascended.