You may only play one Costly Alliance per turn.
Reaction: After you accept an invitation to ally: If one of your units is in the current army of a player whose invitation you accepted after he destroys a province or opposing army during a battle resolution this Attack Phase, you may target one of that player's Holdings and take control of it.

"I know you lack funds, Yasuki-sama. The Mantis expect more later."

• Card Type: Action
• Rarity: Uncommon
• Number: 80
• Gold: 0
• Focus Value: 3