Shelgon (38/101) (Delta Species) (Stamped) [EX: Dragon Frontiers] Rock If a DARK monster you

If a DARK monster you control would be destroyed by battle or an opponent's card effect

When "Herald of Perfection" is Ritual Summoned by this card's effect: You can banish this card from your Graveyard to target 1 of the monsters in your Graveyard that was Tributed for that Ritual Summon

except "Crystron Thystvern"

switch control of all those monsters

Set: Dark Beginning 1 Card type: Effect Monster Rarity: Rare Attack: 1000 Defense: 700 This monster can attack twice during the same Battle Phase

Shelgon (38/101) (Delta Species) (Stamped) [EX: Dragon Frontiers] Rock If a DARK monster youSet: EX: Dragon Frontiers Type: Water Rarity: Uncommon Retreat cost: Colorless,Colorless