An opponent cannot block and kill Satya or Lightning Runner.
You have at least six ({E} magic symbol) .
Steps
Declare Lightning Runner and Satya as attackers, triggering their abilities.
Resolve the Satya trigger, causing you to get ({E} magic symbol) ({E} magic symbol) and create a token copy of Lighting Runner that's tapped and attacking.
Resolve the Lightning Runner trigger, causing you to get ({E} magic symbol) ({E} magic symbol) and then pay eight ({E} magic symbol) to untap all creatures you control and to get an additional combat phase after this one.
Move to your next combat phase, and declare Satya and each Lightning Runner you control as attackers.
Resolve the Satya trigger, causing you to get ({E} magic symbol) ({E} magic symbol) and create a token copy of Lighting Runner that's tapped and attacking.
Resolve the first Lightning Runner trigger, causing you to get ({E} magic symbol) ({E} magic symbol) and choosing not to pay.
Repeat step 6 until there is only one Lightning Runner trigger remaining.
Resolve the final Lightning Runner trigger, causing you to get ({E} magic symbol) ({E} magic symbol) and then pay eight ({E} magic symbol) to untap all creatures you control and to get an additional combat phase after this one.