So as most of you probably know by now, I like to spend a lot of time just floating ideas that will likely never happen. Today, I want to briefly show you guys an idea I had earlier today for what the Pendulum Summon mechanic could have looked like. Here are all of the details:
1. Pendulum Monsters are colored gold, with silver streaks across the card.
2. Pendulum Monsters don't have a Level or Rank, but a Class. This is signified by blue level stars. The Class corresponds to the Levels or Ranks of the monsters you'll need to have on the field for the Pendulum Summon.
3. To summon a Pendulum Monster, you first need to have everything required by the card face-up in your control. An example might be "2 Level 5 Zombie-Type monsters." Then, send all of the required monsters to the Graveyard except one; the one you choose to keep goes to your Spell and Trap Card Zone and becomes a Pendulum Material. Rotate the material so that it lies horizontally. Finally, Special Summon the Pendulum Monster from your Extra Deck in the same column as its Pendulum Material.
4. If a Pendulum Monster requires you to control something like "2 Level 2 or Rank 2 monsters," you are able to have one of each. It doesn't have to exclusively be the first or second requirement.
5. When a Pendulum Monster leaves the field, send all Pendulum Materials you control to the Graveyard. A Pendulum Material only ever leaves the field if a Pendulum Monster leaves the field, or if a card specifically says to remove one from the field. They cannot removed be from the field by card effects unless an effect specifically says so, such as that of a Pendulum Monster.
6. You can only control one face-up Pendulum Monster at a time, but you can control up to five Pendulum Materials at a time; obviously one for each Spell and Trap Card Zone.
7. To account for the addition of a new Extra Deck-exclusive monster, the Extra Deck size would become 17.
So now that we have all of the basic ground rules out of the way for this (once again, not real) mechanic, let me introduce a few examples!
Shadowseeking Manipulation Puppet
Dark / Class 2 / Fiend / 800 / 2100
3 Level 2 monsters
per turn, during either player's turn: You can target 1 card on the
field; destroy that target. You can only activate the effect of "Shadowseeking Manipulation Puppet" up to three times per Duel.
Fire / Class 3 / Winged-Beast / 1900 / 1600
2 Level 3 Fire monsters
Once per turn, if you control a Pendulum Material that was originally Fire: You can inflict 1000 damage to both players.
Dragon Master of Teleportation
Water / Class 3 / Sea-Serpent / 1800 / 700
2 Level 3 or Rank 3 Fish, Sea-Serpent or Aqua-Type monsters
Once per turn: You can send 1 Pendulum Material you control to the Graveyard; Special Summon 1 of your or your opponent's banished monsters.
During your opponent's End Phase: You can target 1 Level 3 Fish, Sea-Serpent, or Aqua-Type monster in your Graveyard and pay 1000 Life Points; that target becomes a Pendulum Material in your control.
Mega-Powered Mud Cannoneer
Earth / Class 4 / Aqua / 2400 / 2000
1 Level 4 Earth monster and 1 Level 4 Water monster
face-up, this card's Attribute is also treated as Water. During your
second End Phase after this card was summoned: Send any face-up Pendulum
Materials you control to the Graveyard.
Once per turn: You
can activate one of the following effects, if a Pendulum Material you
control originally had the given Attribute:
Earth: Special Summon 1 Level 4 monster from either player's Graveyard.
Water: Send 1 card from your opponent's hand to the Graveyard.
With these examples I chose to take it in a very theme-based direction, but that doesn't necessarily have to be done. That being said, this is kind of obvious, but I really like this imagining of the mechanic as opposed to what Pendulum Monsters actually ended up becoming. Anyways, thanks for reading!