Astra is an agent that requires a lot of communication and solo queues rarely provide that. This idea below could help with that To make Astra more playable on solo queues, whenever Astra uses her star, a little indicator on your teammates...

Step 1. Wait for cypher to ult. Step 2. Use Omen ult (This way the minimap turns black so they can't see where people are on the opposite side of the map Step 3. make cypher sad :( Step 4. Repeat. ​ Let me know if you guys want...

As the title says, I don't know if you can do it in COMP, but you can do it in unrated. Actually annoying my team mate and enemy player were open about it and laughing as our team mate gave them all the info and positions of our team.