Mauvrion Skies (Blue) (CRU147) (1st Edition) - Crucible of War

The next Runeblade attack action card you play this turn gains go again and "If this hits, create a Runechant tokens." (It's an aura with "When you play an attack action card or attack with a weapon, destroy Runechant and deal 1 arcane damage to target opposing hero.")
Go again