Artmage Varnish -Alteration- (Ultra Rare)

Place 1 Artmage Academic Arcane Arts Acropolis from your Deck or GY, face-up in your Field Zone, or if you control Artmage Academic Arcane Arts Acropolis, add 1 Artmage card from your Deck to your hand instead, except Artmage Varnish -Alteration-. When your Artmage monster is targeted for an attack: You can banish this card from your GY; negate that attack, then you can Special Summon 1 Medius the Pure from your hand. You can only use each effect of Artmage Varnish -Alteration- once per turn.