YuGiOh Gates of the Underworld Structure Deck

If this card is discarded from the hand to the Graveyard by a card effect, Special Summon this card to your side of the field. If this card is discarded from the hand to the Graveyard by your opponents card effect, you can select up to 2 cards on your opponents side of the field and destroy them.

If this card is discarded from the hand to the Graveyard by an opponents card effect, Special Summon this card. If this card is Special Summoned this way, destroy all monsters OR all Spell and Trap Cards your opponent controls

Your opponent cannot select any monster you control, except Marquis of Darkness, as an attack target, or as a target of a Spell or Trap Card.

You can special summon this card from your hand when you take battle damage. This card gains 600 ATK and DEF for each card in your hand. Once per turn, you can send 1 monster from your hand to your graveyard to take control of 1 face up monster your opponent controls with the same level as the sent monster. Once per turn, you can select 1 monster in your graveyard: This cards level becomes the same as that monsters until the end phase

When this card is sent from the field to the Graveyard move 1 monster with an ATK of 1500 or less from your Deck to your hand. Your Deck is then shuffled

When this card is sent to the Graveyard as a result of battle, select 1 monster on the field and destroy it.

This card cannot be attacked if there is another Fiend-Type monster on your side of the field. The ATK and DEF of this card become the number of Fiend-Type monsters on the field (excluding this card) X 1000 points.

When this card is destroyed by battle and sent to the graveyard, destroy 1 card on the field.

When this card is Normal or Special Summoned, place 1 Guard Counter on it. This card gains 300 ATK for each Guard Counter it has. Once per turn, you can remove 1 Guard Counter from this card and place it on 1 other face-up card you control. If that card would be destroyed, remove the Guard Counter instead.

When your opponents monster declares a direct attack, you can Special Summon this card from your hand and end the Battle Phase. If this card is Special Summoned with this effect, remove it from play when it is removed from the field.

All Fiend-Type monsters gain 300 ATK and DEF. Once per turn: You can banish 1 Fiend-Type monster from your Graveyard; discard 1 Fiend-Type monster, then draw 1 card

Select 1 face-down card on the field and destroy it, and, after that, select 1 card from your hand and discard it to the Graveyard.