A continuation of my series of Type/Attribute combinations that are underused. I didn't like the idea of an already underused Type/Attribute being Extra Deck monsters, and I don't like to support them, so when designing these cards I intentionally avoided that. It would be nice to see more people contribute cards as well!
Previous cards of this vein
You may Special Summon this card (from your hand) while there are 3 or less cards in your hand. Once per turn, you may send 1 Fish-type monster from your hand to the Graveyard to draw 1 card. If the drawn card is a Level 4 or higher Fish-type monster, you may reveal it to draw an additional card.
FLIP: Draw 1 card. Both players must then reveal the top 5 cards of their decks and send 1 of those cards to the Graveyard. Both players then shuffle their decks.
Once per turn, you may send 3 Trap Cards from your Deck to the Graveyard to target 1 face-up Attack Position Special Summoned monster on the field: Destroy that monster.
Once while this card is face-up on the field, during either player's turn, you may banish 1 Xyz or Synchro Monster from your opponent's Graveyard. If you do, increase this card's ATK by the Level or Rank of the banished monster x200.
When an opponent's monster declares an attack, you may discard this card to decrease the ATK of the attacking monster by 600 until the end of the Damage Step. When a monster you control attacks, you may banish this card in your Graveyard to increase the ATK of the attacking monster by 600 until the end of the Damage Step.
When this card is Normal Summoned, you may select and banish up to 1 Monster, Spell, and Trap Card each in both player's Graveyard(s). If this face-up card is targeted for an attack or card effect, you may banish it and 1 card in your hand. Then Special Summon this removed from play card during your next Standby Phase.
If 5 or more of your cards are banished, you may Special Summon this card from your hand. This card cannot declare an attack the turn it is Special Summoned this way. Once per turn, you may banish any number of monsters in your Graveyard to decrease the ATK of all monsters your opponent controls by the number banished x300. If a monster's ATK becomes 0 by this effect, destroy it.
You may Special Summon this card (from your hand) by banishing 2 cards you control. When this card is Summoned, gain 2000 Life Points. Once per turn, you may target 1 of your banished cards and 1 card in your Graveyard. Return the first target to the Graveyard and banish the second target.
Master of Rites
You can Special Summon this card (from the hand) by returning 2 FIRE monsters in your Graveyard to the Deck. You can Special Summon this card from the Graveyard by discarding 2 Pyro-type monsters. Once per turn, you may banish 1 Pyro-type monster in your Graveyard to select 1 face-up monster on the field: Change that monster to face-down Defense Position.
When a face-up FIRE or Pyro-type monster you control would be destroyed (either by battle or by card effect), you discard this card: Until the End Phase of the turn, that card cannot be destroyed. You can only activate the effect of “Coal Coat” once per turn.
When this card is Summoned, you may return 1 banished card to the owner's Deck or Graveyard. When this card is destroyed OR sent to the Graveyard, you may banish it and 1 card in either player's Graveyard.
The Thing in the Hotspring
When this card is sent to the Graveyard, you may shuffle any number of cards in your hand into the Deck and draw an equal number of cards. During your Standby Phase, if you control no monsters and there are 2 or less cards in your hand, you may Special Summon this card from your Graveyard in face-up Attack Position. If this card is Summoned this way, banish it when it leaves the field.
Cannot be Normal Summoned (but can be Normal Set). While your opponent controls exactly 1 or 5 monster(s), you may Special Summon this card (from your hand). When this card battles, use the original ATK and DEF of both monsters when calculating battle damage.
This card is unaffected by the effects of Trap Cards. Once per turn, during either player's turn, you may send 1 face-up Continuous Trap Card you control to the Graveyard to target 1 card on the field: Send that target to the Graveyard.
You can Normal Summon this card without Tribute. If you do, this card's original ATK becomes 1500. While this card is face-up on the field, monsters you control cannot be targeted by the effects of your opponent's Effect Monsters.
When this card is Normal Summoned, you may look at 3 random cards in your opponent's hand. You may then choose to return 1 of those cards to the owner's Deck, and if you do your opponent draws 1 card. Then, if the returned card was a Spell or Trap Card, inflict 500 damage to your opponent's Life Points.
When this card is Special Summoned, you may reveal the top 3 cards of your Deck. You may then add any number of cards revealed this way to your hand by shuffling an equal number of cards from your hand into the Deck.
You may Special Summon this card from your hand into a column where all other zones are occupied. This card gains ATK and DEF equal to the number of cards in its column x200. You may activate the following effects once per turn, and may only activate one per turn:
* Move this card into an unoccupied adjacent monster card zone on your side of the field.
* Target 1 card in the same column as this card. Banish that target. That card is then returned in its original position during your second Standby Phase after activating this effect.
This card cannot be Special Summoned except by its own effect. You may Special Summon this card (from your hand) by returning 2 Thunder-type monsters you control to the owner's hand. Once per turn, you may switch the ATK and DEF of all other monsters on the field unti the End Phase of the turn.
Each time a monster you control declares an attack, place 1 Friction Counter on that card. All monsters on the field gain 100 ATK and DEF for each Friction Counter on them. If this face-up card would be destroyed (either by battle or card effect), you may remove all Friction Counters from the field instead.
When this card is Normal Summoned, you may Special Summon 1 Level 3 or lower monster from your Graveyard in face-down Defense Position. If this card is removed from the field, you can flip the monster Summoned by this effect into face-up Defense Position.
You may Special Summon this card (from your hand) while your opponent controls 2 or more Spell/Trap Cards. Each time your opponent Special Summons a monster, you may select 1 face-down card your opponent controls: Return that card to the owner's hand.
FLIP: Select 1 face-up monster on the field. That monster's ATK and DEF becomes 0. In addition, when the selected monster is destroyed, draw 1 card.
While you control no monsters, you may Special Summon this card (from the hand) by returning all of your banished Insect-type monsters to the Graveyard. You may banish up to 5 monsters from the Graveyard: Send an equal number of cards from the top of your opponent's Deck to the Graveyard. The effect of “D.D. Divebeetle” can only be activated once per turn.
When an opponent's monster targets a card you control with its effect, you may Special Summon this card (from your hand), then change the target of that effect to this card if this card would be an appropariate target. If this face-up card changes control in any way, inflict 800 damage to your opponent's Life Points.
(Includes becoming a material for an opponent's Xyz, or becoming an equip spell card)
When this card is Summoned, you may banish 1 monster in your Graveyard to send 1 Rock-type monster from your Deck to the Graveyard.
Cannot be Normal Summoned or Set. Must first be Special Summoned (from your hand) by controlling no monsters and at least 1 face-up Spell or Trap Card. This card cannot be targeted by your opponent's card effects. Once per turn, if a face-up Continuous Spell/Trap or Field Spell Card you control would be destroyed, it is not.
When your opponent Special Summons a monster, you may Special Summon this card. Monsters summoned from the Extra Deck cannot activate their optional effects the turn they are Summoned.
When this card is Special Summoned, draw 1 card. You can only gain the effect of “Onmoraki Kinder” once per turn.
This card cannot declare an attack while you control a monster Special Summoned from the Graveyard. When a monster is Special Summoned from the Graveyard, Tribute this monster and send that card to the Graveyard.
If this card is destroyed, you can Special Summon 1 Level 3 or lower monster from your hand or Graveyard. A monster Summoned by this effect gains 300 ATK and DEF.
When a card would be sent to the Graveyard, you may equip it to this card instead as an Equip Spell Card instead. This card gains 300 ATK and DEF for each card equipped to it this way. When this card would be destroyed, you may send all Equip Spell Cards equipped to it to the Graveyard instead.