Does Commander Ledros's cost reduction effect trigger if a unit survives being killed (e.g., through Soraka's effect)?

Ruling: Commander Ledros only reduces cost for units that actually die. If a unit survives through an effect like Soraka, it does not count toward the cost reduction.

Nuances:

• The card's specific wording "for each killed this way" requires the unit to actually die, not just be targeted by a kill effect
• This functions similarly to other cards like Baited Hook that only trigger their effects when units actually die