1

They have a small magical aperture hidden inside the seclusium somewhere, through which they can send malicious entities.

2

They can send small half-invisible plasmids to the seclusium, and watch through their eyes.

3

They have a portal through which it routinely communicates with the wizard.

4

They command a powerful plasmic entity and can, under some circumstances and at some cost, visit it upon the seclusium.

5

They can summon the wizard to appear by magical proxy before them.

6

They can, by an exertion of will or ceremony, distort or disrupt the flow of magic into the seclusium.

7

The wizard maintains a magical proxy or subsidiary self of them as a guest of the seclusium.

8

They hold, by right of virtues, the authority to curse or damn the seclusium and its people.

9

They can visit certain regions of the seclusium by projection, at will.

10

They have discovered flaws in the seclusium's magical boundaries through which they can inject tendrils, manifestations, or spells.

11

They can manipulate, command, or control the seclusium's incidental plasmic inhabitants.

12

They can be invited into the seclusium by any person there who freely and willingly does so.