Rule 2330.Practice.

Once the court enters an order allowing intervention, the intervener has all the rights and liabilities of a party to the action. It stands where any party stands, with the same obligations.

The existing parties get a matching tool. Any party may amend any pleading it has filed to include any claim or defense available against the intervening party. So the intervener’s arrival can widen the case in both directions: the intervener brings the relief or defense set out in its petition under Rule 2328, and the original parties may meet it with claims or defenses of their own.

Rule 2329 governs whether intervention is allowed at all; this rule governs what follows. Rule 2354 gives the same status to a successor substituted for a party: the successor has all the rights and liabilities of a party to the action.