Mermail Abyssteus [CBLZ-EN083] Ultimate Rare Water [x2] then target 1 "Cyber Dragon"

then target 1 "Cyber Dragon" in your Graveyard

You can only use this effect once per turn during your Main Phase

but Tributes are required for monsters Level 5 or more

you can Special Summon "Des Frog"(s) from your hand or Deck up to the number of T

You can only use each effect of "Duoterion" once per turn

Mermail Abyssteus [CBLZ-EN083] Ultimate Rare Water [x2] then target 1 "Cyber Dragon"Set: Cosmo Blazer Card type: Effect Monster Rarity: Ultimate Rare Attack: 1700 Defense: 2400 You can discard 1 other WATER monster to the Graveyard; Special Summon this card from your hand. When you do: Add 1 Level 4 or lower "Mermail" monster from your Deck to your hand. You can only use this effect of "Mermail Abyssteus" once per turn.