The Conclave reads :
Response: After The Conclave is declared as an attacker or defender, until the end of the phase it gains (choose 1) Stealth, Renown, or Deadly.
If an opponent declares attackers, and uses stealth to prevent The Conclave from being declared defender, it's already to late to give him stealth through his response when I declare him defender right ?
I am 99% sure this is to late but I want to be 100% sure
Thank you in advance !