Invoker script in progress, have question about auto sunstrike

[thecoltster1]

Hey guys I'm working on an Invoker script. Just using python. So far he will auto invoke skills with hotkeys and also cast invisibility if his health drops too low.

My question is: I've seen Invoker hack videos online where invoker will automatically cast sunstrike on heros who have low health even if they're not visible on the screen. How are they doing this? Is it taking packet data to extract the player positions and health?
Also how would he cast across the map when the enemy isn't visible? Packet casting?