If Void Seeker targets a unit and the opponent responds by moving that unit (e.g., with Retreat), does the caster still draw a card?

Ruling: Yes, the caster still draws a card. Void Seeker has two separate effects: dealing damage and drawing a card. The draw is not conditional on successfully dealing damage.

Sequence:

• Void Seeker is cast targeting a unit
• In response, the unit is moved (e.g., with Retreat)
• When Void Seeker resolves, the damage portion fails because the target is no longer valid
• The draw portion still resolves because it is a separate effect (separated by a period)

Nuances:

• If the unit had been removed from play entirely (e.g., with Gust), the controller could not be established and no card would be drawn
• If the unit is moved to a different zone but still in play (like the base), it remains a valid target for establishing controller, so the draw still happens
• The key is the punctuation: effects separated by periods are separate resolutions that resolve independently
• This only applies when the draw is not conditional (no "if you do" language)