If a Spell/Trap you control leaves the field because of an opponent's effect, and is now in the GY or banished (except during the Damage Step): You can Special Summon this card from the GY (if it was there when that Spell/Trap left) or hand (even if not), then you can Set 1 Spell/Trap that is banished or in your GY to your Spell & Trap Zone. You can only use this effect of “Mana Dragon Zirnitron” once per turn. If Summoned this way, banish this card when it leaves the field.
|Pack||Tornado of Phantoms [SR]|
Special summon Mana Dragon Zimitron when your opponent a card that destroys/banishes your backrow. Aside from getting a monster on the field, you can also retrieve the card your opponent removed.
Galaxy Cyclone can destroy an opponent’s backrow then banish itself from the graveyard to destroy another one of your opponent’s backrow.Use Mana Dragon Zirnitron to retrieve reuse Galaxy Cyclone from your banish zone.
Retrieving any Spell/Trap card in your graveyard or banish zone could be very helpful in a Spell/Trap reliant deck like Spellbooks. You can use Mana Dragon Zirnitron to retrieve Spellbooks banished by Spellbook of Fate, or Spellbook of Fate itself if it was banished.