Dewgong (25/102) [Base Set Shadowless Unlimited] H4 banish 1 Gemini monster you

banish 1 Gemini monster you control that is treated as an Effect Monster and has gained its effects

or you can play each one in its own Deck full of monsters with the same Type

Set: Dark Revelation Volume 4 Card type: Fusion/Effect Monster Rarity: Ultra Rare Attack: 4000 Defense: 2800 "Cyber Dragon" + "Cyber Dragon" + "Cyber Dragon" - A Fusion Summon of this card can only be conducted with the above Fusion Material Monsters

while they have 4 or more cards in their hand

You can only use this effect of "Ignoble Knight of Black Laundsallyn" once per turn

Dewgong (25/102) [Base Set Shadowless Unlimited] H4 banish 1 Gemini monster youSet: Base Set Shadowless Unlimited Type: Water Rarity: Uncommon Retreat cost: Colorless,Colorless,Colorless