DREV Part 1: That Metal Sheet

The recently released set Duelist Revolution introduces the Scrap theme, which is based around on EARTH Monsters that recycle themselves and promote bad puns related to feces.

Let's start with Scrap Chimera:

This card cannot be used as a Synchro Material Monster, except for the Synchro Summon of a "Scrap" monster, and all the other Synchro Material Monsters must also be "Scrap" monsters. When this card is Normal Summoned, you can select 1 "Scrap" Tuner monster in your Graveyard and Special Summon it.

Chimera has a Condition that restricts its use as a Synchro Material. This Condition cannot be negated, similar to Debris Dragon. It also has an Optional Trigger Effect that activates upon its Normal Summon (which means it can be negated by Pulling the Rug). This effect targets a monster in your Graveyard.

Next, we have Scrap Goblin:

This card cannot be destroyed by battle. If this face-up Defense Position card is selected as an attack target, destroy this card at the end of the Battle Phase. If this card is destroyed by the effect of a "Scrap" card and sent to the Graveyard, you can select 1 "Scrap" monster in your Graveyard, except "Scrap Goblin", and add it to your hand.

The first effect is your usual battle immunity, a Continuous Effect. Next we have a Mandatory Trigger Effect that destroys Scrap Goblin at the End of the Battle Phase in which it's chosen as an attack target. As long as Goblin was chosen as the target, it will be destroyed, even if the attack is negated (Magic Cylinder, Necro Gardna, etc.) or stopped (Gravity Bind, Enemy Controller). If you switch the attack target to a different monster, such as with Dreamsprite or Shift, Goblin won't destroy itself. More importantly, Goblin has to remain face-up until the End of the Battle Phase in order to activate this effect, so if you flip it face-down before it activates, it won't activate. If your opponent attacks Goblin with a few Gladiator Beasts, the opponent can activate the effect of the Gladiator Beasts before you activate Goblin (so that s/he has a legal target for Murmillo or any other excuse). The third effect is an Optional Trigger Effect that can't miss the timing. It targets a monster in the Graveyard, and of course, being destroyed by the second effect can trigger the third one, as Scrap Goblin is a Scrap Card itself.

And very close to Goblin, we have Scrap Beast:

If this face-up Defense Position card is selected as an attack target, destroy this card at the end of the Battle Phase. If this card is destroyed by the effect of a "Scrap" card and sent to the Graveyard, you can select 1 "Scrap" monster in your Graveyard, except "Scrap Beast", and add it to your hand.

Needless to say, Scrap Beast has the same two effects as Scrap Goblin, so it works exactly the same Q_Q

Then, we have Scrap Hunter:

Once per turn, you can select 1 face-up "Scrap" monster you control, except this card. Destroy it and send 1 Tuner monster from your Deck to your Graveyard.

Scrap Hunter has an Ignition Effect which targets. At resolution, it is destroyed and you send a monster from the Deck to the Graveyard. The target must be face-up when it resolves. This effect can be activated if Macro Cosmos is active. The destruction and the dumping are considered to be simultaneous, so you can activate something like Chain Whirlwind after this Card resolves. If you fail to destroy the target, then you do not send a monster to the Graveyard.

Moving on, we have Scrap Golem:

Once per turn, you can select 1 Level 4 or lower "Scrap" monster in your Graveyard and Special Summon it to either player's side of the field.

Scrap Golem has an Ignition Effect, which targets. And as its rulings point out already, the decision on the side of the Field is performed when it resolves. Not much else to say, it's a simple effect.

Speaking of simple Cards, let's begin with the Spell Cards with the simple Scrapyard:

Add 1 "Scrap" Tuner monster from your Deck to your hand.

Your average Reinforcement of the Army clone. As usual, this effect doesn't target, and you can't activate if Thunder King Rai-Oh is face-up.

We then have Scrapstorm:

Select 1 face-up "Scrap" monster you control. Send 1 "Scrap" monster from your Deck to the Graveyard, then draw 1 card. Then, destroy the selected monster.

Scrapstorm targets a monster on your side of the Field. The three other actions are not considered to be simultaneous, so for example, your opponent can't respond with Drastic Drop Off to it. The actions are dependant of each other, so if you can't send a monster to the Graveyard (because of Dimension Fortress Weapon), you don't get to draw or destroy your monster. However, if you can't destroy your monster, you can still dump a monster and draw a Card.

And the last original Spell Card was Scrap Sheen:

Select 1 face-up "Scrap" monster you control and destroy it. All face-up "Scrap" monsters you control gain 1000 ATK until the End Phase.

Sheen targets a monster you control, which is destroyed at resolution. The ATK gain does not target. The ATK gain is a consequence of the destruction, but they are considered to happen simultaneously. Since the ATK gain depends on the destruction, you cannot activate this Card during the Damage Step.

A TCG exclusive Spell Card was introduced for this theme: Guts of Steel:

Select 3 "Scrap" monsters in your Graveyard. Your opponent picks 1 of them, you Special Summon it to either player's side of the field, and remove the others from play.

Guts targets 3 monsters in your Graveyard. The opponent selects one when the effect resolves, and this selection does not target. Much like Scrap Golem, you choose which side of the Field to place the monster on when the effect resolves.

The only Trap Card in this set for Scraps is Scrap Rage:

Activate during damage calculation if a face-up Defense Position "Scrap" monster on the field is attacked. The attacked "Scrap" monster gains 2000 DEF, and is destroyed at the end of the Battle Phase.

As the description points out, Rage can be activated during the elusive Damage Calculation Sub-Step. It does not target the attacked monster. If the monster stops being face-up, it won't be destroyed at the End of the Battle Phase, but it would lose the gained DEF. It also follows the same rules as Goblin regarding the destruction (Gladiator Beasts and the like). You can choose to destroy Goblin or Beast by their own effect or by this Card's effect, as you like.

And finally, we have the mandatory Synchro Monster: Scrap Dragon:

1 Tuner + 1 or more non-Tuner monsters
Once per turn, you can select 1 card you control and 1 card your opponent controls. Destroy them. When this card is destroyed by your opponent's card (either by battle or by card effect) and sent to the Graveyard, select 1 non-Synchro "Scrap" monster in your Graveyard and Special Summon it.

Dragon has an Ignition Effect that targets two Cards. If one of the targets cannot be destroyed for any reason, the other one is still destroyed. Its second effect is a Mandatory Trigger Effect that activates when Scrap Dragon is destroyed (even if it has its Summon negated). This one targets too. Much like Vampire Lord, Scrap Dragon has to be controlled by its owner in order to account which Cards that destroy it are actually the opponent's Cards.

Well, that covers the Scrap monsters. Stay tuned for more Duelist Revolution Cards!