Final answer:
The covenant by which the grantor guarantees the grantee's title will be good against third parties bringing court actions is the Covenant of warranty forever.
Step-by-step explanation:
The covenant by which the grantor guarantees the grantee's title will be good against third parties bringing court actions is the Covenant of warranty forever. This covenant ensures that the grantor will defend the grantee's title if anyone challenges it in court.