Reservoir Walker enters the battlefield, causing you to get ({E} magic symbol) ({E} magic symbol) ({E} magic symbol) and gain three life.
Repeat from step 3 one additional time.
Resolve the Lightning Runner ability from step 1, causing you to get ({E} magic symbol) ({E} magic symbol) , then pay eight ({E} magic symbol) to untap all creatures you control, and to get an additional combat phase after this one.