[HELP] Spell Glimpse (Thrall in dota) how?

[Striker21]

Well, i'm wondering how they could make that spell. which return the targeted unit back to it's position in last pass 4 second (for who don't know). I thought about this: Set every unit in playable map area's position every 0.01 as a variable?
and every 4 second remove that location? . Sounds buggy and leaky . So i wanted some help from you, hope there's some1 can help. This just like a spell request so i'll give a credit and also rep for sure

 

[Bribe]

I built a spell that makes Glimpse look noobish.

http://www.hiveworkshop.com/forums/spells-569/time-warp-improved-166353/?prev=u=Bribe

You're welcome to play around with that.