Your triggers are almost unreadable from that picture.
You should use the code tags supported by this forum.
Start by going to the Trigger Editor in World Editor. Select the trigger you want to show us. Right-click on 'Events' choose 'Copy as Text', come back here, paste the trigger and wrap CODE or WC3 -tags around the trigger.
You should also try to explain to the best of your ability what the trigger/spell is supposed to do, what it actually does and what goes wrong.
OnTopic: I believe you can make your spell MUI by adding the Target unit of ability being cast to a unit group. Then pick every unit in *that group* and ..do whatever.., and remove the unit from that unit group after X seconds.
To measure seconds you can, for example, use the unit's custom value. -Each time you pick all units in *unit group*, add 1 custom value to (Picked unit), if the custom value of (Picked unit) is greater than or equal to 12, then do remove (Picked unit) from *unit group*.
EDIT: Don't forget that Special Effects leaks. -You need to destroy it.
Signatures can be edit in your account profile. As for the old stuffs, I'm thinking it's because Blizzard is now under Microsoft, and because of Microsoft Xbox going the way it is, it's dreadful.
@tom_mai78101 I must be blind. If I go on my profile I don't see any area to edit the signature; If I go to account details (settings) I don't see any signature area either.
You can get there if you click the bell icon (alerts) and choose preferences from the bottom, signature will be in the menu on the left there https://www.thehelper.net/account/preferences
I bought an Ender 3 during the pandemic and tinkered with it all the time. Just bought a Sovol, not as easy. I'm trying to make it use a different nozzle because I have a fuck ton of Volcanos, and they use what is basically a modified volcano that is just a smidge longer, and almost every part on this thing needs to be redone to make it work
So, 2.5mm longer. But the thing that measures the bed is about 1.5mm above the nozzle, so if I swap it with a volcano then I'm 1mm behind it. So cool, new bracket to swap that, but THEN the fan shroud to direct air at the part is ALSO going to be .5mm to low, and so I need to redo that, but by doing that it is a little bit off where it should be blowing and it's throwing it at the heating block instead of the part, and fuck man
I didn't realize they designed this entire thing to NOT be modded. I would have just got a fucking Bambu if I knew that, the whole point was I could fuck with this. And no one else makes shit for Sovol so I have to go through them, and they have... interesting pricing models. So I have a new extruder altogether that I'm taking apart and going to just design a whole new one to use my nozzles. Dumb design.
Can't just buy a new heatblock, you need to get a whole hotend - so block, heater cartridge, thermistor, heatbreak, and nozzle. And they put this fucking paste in there so I can't take the thermistor or cartridge out with any ease, that's 30 dollars. Or you can get the whole extrudor with the direct driver AND that heatblock for like 50, but you still can't get any of it to come apart