Can you activate Najeela multiple times?

I'm curious, is it possible to activate Najeela's abilities multiple times within a single game or turn? I've heard rumors that some players have found ways to exploit her abilities, but I'm not entirely sure if it's actually within the rules. Could you clarify if there are any restrictions or limitations on activating Najeela's effects multiple times, and if so, what those might be? It would be greatly appreciated if you could provide some insight into this matter.