If a unit is targeted by a spell (like Singularity) and then moved to a different zone (like base) before the spell resolves, does the unit survive?

Ruling: Whether the unit survives depends on whether the spell specifies a location restriction. If the spell does not mention a location (like Singularity), the unit remains a legal target even after moving and will be affected. If the spell specifies a location like "at a battlefield" (like Void Seeker), moving the unit makes it no longer a legal target and the unit survives.

Sequence:

• Spell is cast and targets a unit
• Unit is moved to a different zone (e.g., Flash moves it to base)
• On resolution, check if the spell has location restrictions
• If no location restriction: spell affects the unit normally
• If location restriction exists: target becomes illegal, spell effect on that unit fails

Nuances:

• Effects that don't reference the target can still resolve even if the target becomes illegal (e.g., Void Seeker still draws a card)
• Effects that reference information about the target require the target to be legal on resolution (e.g., Hidden Blade needs the target legal to draw 2 cards)