If I use {spirit en-kor}s ability and redirect damage at {darksteel myr} does en-kor take more damage and if so could this be used to direct a big tramplers damage to nothing?
You can use the Spirit's ability multiple times to redirect damage to the myr, so in a situation like that, they are both virtually immune to damage. Regarding trample, you could only redirect damage equal to the damage being delt to the Spirit (2), the rest would still trample over to you
You take excessive of 2 if trample. Just like If you have {moonlight Geist} and same situation. You'd prevent 1 and rest would trample over.