maze trigger qestion

when a unit touches a unit like in a maze, when like a foot man is moving back and forth and u have to run and hope u dont touch him and if u touch him u get killed, how would u make a trigger to do that?

i try to open some maze maps but all of them are protected.

Permenant Immolation is a simple yet effective way to do it.

Probably best to use modified permament imolation, but you could use:

Unit comes within range of XXX

Unit - Kill triggering unit.