You can discard 1 Spell; Special Summon this card from your hand. When your opponent activates a card or effect that targets a Link Monster(s) you control (Quick Effect): You can banish 2 Spells from your GY; negate that effect. If this card is destroyed by battle or card effect and sent to the GY: You can target 1 of your banished Sky Striker Spells; add it to your hand. You can only use each effect of Sage of Wisdom – Himmel once per turn.