If Tryndamere attacks a battlefield with one unit and Hidden Blade kills that unit before combat damage, does Tryndamere's ability to score another point still trigger?

Ruling: No, Tryndamere's ability does not trigger. He doesn't assign any excess damage to units because no combat damage was assigned in this scenario.

Nuances:

• The ability requires Tryndamere to assign excess damage to units, which doesn't occur when the defending unit is removed before combat damage