What are good Base Spells for Dummy Spell?

What are the best 2 base spells for the 3 kinds of dummy spells:
A no-target fire once dummy
A point-target fire dummy
A target based dummy

Please suggest 2 base spells for the 3 different types of dummy spells. Also the way in how to removed the true effects of the base spell.

A no-target fire once dummy (Summon Spells)
A point-target fire dummy (Carrion Swarm)
An object based dummy (Shadow Strike)

I have notice at some spells like Shadow Strike / Sleep places a status icon to target unit status icons and also a buff art on the target.

A no-target fire once dummy - Big Bad Voodoo - set everything to zero
Starfall I've heard works just like BBV. Tranquility probably would too.
Roar maybe?

A point-target fire dummy. Carrion Swarm works like a charm.
Wards also work - set duration to .01 or something and give them a blank model path. Crushing wave, Breath of Fire, Breath of Frost. They would probably work.

An object based dummy - Unholy Frenzy - set all values to zero.
Invisibility, Cripple, there are too many here to list.

For my object base dummy spells I been using Shadow Strike or Cripple as the base.

I cancel out the effect of the base spell by setting 0 in the right fields. So that the base spell effect last zero seconds.

In my trigger I pause the the unit which has been targeted by the spell. I do this to display a special effect on the target for X seconds and some other stuff.

The problem is during the time the unit is pause, the base spell Targetart is shown on the targeted unit and the Buffart of the base spell is also shown in targeted unit Status icons.

In case of Cripple, I can import UndeadAbiliyFunc.txt with these setting:

Buffart=
Targetart=

This removes the Targetart effect, but the Status icon is now showing the Smiley Man.

Are there any Spells which I could use as a base spell which do not add a Status Icon on the targetted unit?

Edit - I found one. Finger of Death with art duration set to 0.01.

my favorit dummy ability with no target (like starfall) is berserk, because it doesn't trigger a unit animation, and it works flawlessly.

DeSty

The absolute best base spells for no-target is Water Elemental (or another summon spell). Use A unit spawns a summoned unit to detect it, this way you can detect the level of the spell (if it's a hero spell).
For point-target use Sentry Ward, or Healing Ward if it's a AoE spell (just to make the circle appear).
For unit-targeting spells I like to use purge or sleep if they should be instant effect spells, and storm bolt if there is a missile.

I like Storm Bolt, because its a target attack and it works great with any animation.

Channel should work for anything, albeit you can only use it once on a hero :nono:

I like to use Hex as a base for target spells. Unlike many of the targeting spells, there are no hardcoded types for Hex--which lets you do things like edit it to target items.

I vote for Channel, since it can be a no target/unit target/point target/unit or point target spell and also can be channelling/not channelling. They really should add 4 more Channel abilities...

Thanks for the help

How does Channel work.

I added it to my custom hero ability list.

During the game my hero can resreach it.

But once it researched, it does not show among the learned spells.

Any reasons why?