Clan & progression

Start any building upgrade

• Can be done in either Home Village or Builder Base.
• Also awarded if a building construction is started.
• Does not apply to Wall upgrades.
• If a building upgrade is cancelled and restarted, the restarted upgrade will not award a stamp.

Start any troop upgrade

• Can be done in either Home Village or Builder Base.

Start any Hero or Pet upgrade

• Can be done in either Home Village or Builder Base.
• Rebuilding the Battle Machine counts as a building construction, so that stamp is awarded instead.

Donate reinforcements

• Only one stamp can be earned per request, so donating multiple units will not give multiple copies.

Complete a Star Bonus

• Can be done in either Home Village or Builder Base.

Win a battle

• Can be done in either Home Village or Builder Base. A win in the Builder Base is defined as scoring at least one star.
• Can also be done in Home Village Friendly Challenges, and single-player battles (including Practice Mode battles, Attack Challenges and the Super Sauna playground level).

Destroy a Town Hall

• Can be done in either Home Village or Builder Base. In the latter case, destroying a Builder Hall qualifies, but not an O.T.T.O's Outpost.
• Can also be done in Home Village Friendly Challenges, and single-player battles (including Practice Mode battles, Attack Challenges and the Super Sauna playground level).

Request reinforcements