Supercell is a pretty badass linkup of Thunder Muscle and Choose Life that gives you lots of good, hard climbing between two of the classic sport routes of Seal Rock. It climbs the first long crux of Thunder Muscle, then the two main cruxes of Choose Life, for a long pitch with rests between boulder problems.

Climb Thunder Muscle to the "heart hold" (also known as the toilet bowl hold). Don't clip as you normally would, then make a long move left to a good jug in the black band. Match this, bust left one more time, and you are on Choose Life at the 8th bolt, just below the first crux. If this draw and the last one clipped on TM are long, rope drag for the remainder of the climb is minimal.

Thanks to Pinklebear and Ted L. for bolting the two climbs and Dr. Rob Eison for the linkup inspiration!

Bolts.