Sage of Strength - Akash [BLMR-EN049] Ultra Rare

(This card is always treated as a "Sky Striker" card.)
You can discard 1 Spell; Special Summon this card from your hand. If a Link Monster(s) you control would be destroyed by battle or card effect, you can banish 1 Spell from your GY instead. 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 Strength - Akash" once per turn.