Why is the primary stat for assassins pen/lethality?
It makes zero sense. Their target is suppose to be squishies, not tanks. In any other game it would be crit or dex/agi which gives crit(and usually some dodge/attack speed/something). Yet part of why our assassins have trouble being balanced without ADCs abusing their items or the items being worthless or the stats not working correctly, etc. Is because they work best with... penetration. A stat that is meant for defeating heavy targets who build def stats, like tanks and bruisers.
Why is this? And should it change?