change of target question

I need help with this card, acting vampire is blocked, he plays change of target, my questiion is, does combat occurs or not? thank you...

Combat does not occur:)

It helps to include the relevant card text.

Change of Target
Only usable when this acting minion is blocked (play before combat, if any). Untap the acting minion, do not tap the blocking minion, and end the current action (it is not successful). This minion cannot perform the same action again this turn.

To answer your question, no, combat does not occur. The action has ended unsuccessfully.

CryWolf wrote:

It helps to include the relevant card text.

Change of Target
Only usable when this acting minion is blocked (play before combat, if any). Untap the acting minion, do not tap the blocking minion, and end the current action (it is not successful). This minion cannot perform the same action again this turn.

To answer your question, no, combat does not occur. The action has ended unsuccessfully.

Very correct indeed.