You're going to have a hard time finding any clones of spawn. The "tren" prohormone in Spawn (estra 4,9) was banned and is now a class III scheduled compound. That said, when they banned tren (dienedione), they only banned the PH- they didn't touch the actual steroid. As such, antaeus labs released a product called trenazone recently. It's a transdermal form of the actual steroid that "tren" was supposed to convert to (dienelone). In reading some of the logs, guys are getting similar strength and body composition effects, but don't seem to be having as many sides (probably because it doesn't have to convert). If you want to do a "spawn" type run, I would recommend picking up some trenazone and some epistane and stacking them yourself.