What does "throw smaller units into the air" property do?

Huh?  You're talking about the effect from ring of divine might and heaven's wrath?  It is an instant kill on creeps smaller than Catas.

Ah, thats why I die instantly so much!

I don't see it on RoDM. My minions should be able to do it, but they don't.

They will, you have to click it, and it lasts for 10 seconds.  

RoDM is special

You "walk" into the units instead of attacking to get the meta impact

Also to clarify, it only works on creeps (So Minotaurs, Archers and Priests) and does not work on the small minion idols.

Even McShane didn't know, that this doesn't work on angels?

And yeah. It is instant kill. Very recognisable when playing with heavy units. When priests have ~1k health and you with heaven's wrath can kill all of them in an instant.

P. S. With heavy units in game settings, this is a very important aspect.

Ahh yea that was my mistake, I knew it didn't I just forgot all about angels for a minute.

You "walk" into the units instead of attacking to get the meta impact

Ah, yes. Now I see. Thanks.

haha good one