Arc Light Sentinel (Yellow) [JDG011] (Promo) Cold FoilSet: Promo Finish: Cold Foil Type: Instant Subtype: Aura Rarity: Promo Class: Light Illusionist Cost: 6 Prism Specialization (You may only have this in your deck if your hero is Prism.) Opponents may only select Arc Light Sentinel as the target of an attack. Spectra (This can be attacked. When this becomes the target of an attack, destroy it and close the combat chain. The attack does not resolve.)