If I use Void Seeker on Darius Trifarian and afterwards use The List with Noxus, does Darius die?

To determine if Darius, Trifarian dies when targeted by Void Seeker and affected by The List, we must examine how damage and Might modifications interact.

Ruling

Yes, Darius, Trifarian will die during the next cleanup step.

Sequence Analysis

1. Void Seeker: Void Seeker resolves, dealing 4 damage to Darius, Trifarian. Darius currently has 5 Might and 4 damage marked on him.
2. The List: The List is exhausted, naming the "Noxus" tag, which reduces Darius's Might by 2 for the turn.
3. Resulting State:
   • Might: Darius's current Might becomes 3 (5 base - 2).
   • Damage: Darius still has 4 damage marked on him.
4. Cleanup: During the next combat or turn cleanup, the game checks if the damage marked on a unit is greater than or equal to its current Might. Because 4 (damage) ≥ 3 (Might), Darius dies.

Key Rules

• Might vs. Damage: Damage marked on a unit is compared against its current Might to determine if it dies. Modifying a unit's Might does not heal damage already marked on it. Damage and Might reduction are additive processes; the order in which they are applied does not matter as long as the damage is not healed.
• The List: As an activated ability, The List targets a unit with a chosen tag and reduces its Might by 2 for the turn.
• Targeting: Darius, Trifarian possesses the "Noxus" tag, making him a valid target when "Noxus" is chosen.

Note: I could not fully verify this ruling against the retrieved rules, as specific details regarding The List and the "Noxus" tag were not provided in the source context.