Shield Addition is a term given to cards that put additional shields into your shield zone.
It is mostly found in the
Light Civilization, only rarely appearing in the Nature Civilization. It was an ability featured prominently on the DM-10 and DM-26 cycles of Dual Civilization multicolored creatures that had a mana cost of 5 and 2000 power.
Light / Spell / 4
■ Add a card from your hand to your shields face down.
Skysword, the Savage Vizier
Light / Mature / Creature / Beast Folk / Initiate / 5 / 2000
■ (This creature is put into your mana zone tapped.)
■ When you put this creature into the battle zone, put the top card of your deck into your mana zone. Then add the top card of your deck to your shields face down.
Wise Starnoid, Avatar of Hope
Light / Water / Evolution Creature / Starnoid / 5 / 9000
■ (This creature is put into your mana zone tapped.)
■ Vortex evolution—Put on one of your Light Bringers and one of your Cyber Lords.
■ Whenever this creature attacks or leaves the battle zone, add the top card of your deck to your shields face down.
■ Double breaker (This creature breaks 2 shields.)
As a game is won when you attack your opponent while he has no shields, adding additional cards into your shield zone can be quite advantageous.
It is usually used as a countermeasure to
beatdown and rush decks that attempt a quick win. As each shield is later put into your hand, chances to use Strike Back and Shield Trigger abilities also increase.
Compared to a creature that has
Blocker, it can be less efficient dealing against creatures that have a Double Breaker ability or more.
The cost of the ability in a cards design is set higher than
draw or Mana Acceleration. Unlike your hand or mana zone, the shield zone is designed as a zone where cards decrease while the game progresses.
Attention needs to be paid to cards such as
Skysword, the Savage Vizier or Almeric, Spirit of Prophecy that put cards from the top of your deck into your shields to prevent deckout.
Creatures with a
Shield Go ability that go into your shields when destroyed can be seen as a form of Shield Addition.
There is no limit (other than running out of cards from your deck) to the number of shields you can have in your mana zone. However, as decks are limited to 40 cards, it would seem difficult to ever over have 35+ cards in your shield zone at the same time (even with your opponents help).
The ability of swapping shields from your hand and cards already in your shield zone is seen in the
Water Civilization and is known as "Shield Exchange".
Looking at cards such as
Raza Vega, Thunder Guardian or Mystic Inscription from earlier released sets can show the highly estimated cost added to cards with a Shield Addition ability.
List of Shield Addition cards
Alephtina, Spiritual Princess Aless, the Oracle Alexandrite, Amazing Arrow Almeric, Spirit of Prophecy Aqua Super Emeral Asamaram, Red Attack Silver Bega, Vizier of Shadow Berochika, Channeler of Suns Bulgluf, the Spydroid Bumbershoot, Wicked Queen Left God Caladorius, Apocalyptic Beast Change the World, Blue Divine Dragon Clorts, Strange Stone Codefight Misdirection Codefight Zekia Ex Makina Codename Buffer Lodeole Codename Build Leone Codenight Black of Lionel Codenight Last Propose Dark Hayate, Parasitic Worm Deis Al Maaz, Guardian of Flight Deis Optimus, the Invincible Descartes Q, Logic Hero Duezeus, Nine Extremes Revolution El Destorade, Dragonic Meteor of Taiga Emeral Emeralda, Pitch Dragon Elemental Estol, Vizier of Aqua Gwem, Demonic Spirit Knight H Senbon Izumo, Super Godkind Jet R.E, Brave Vizier Kaemira, the Oracle Kaiser Prince, Flame Dragon Prince Kalchia, the Patroller Katchikachi Itchikatchizu Katsbee, Five Extremes Katsuking Jr, Kung Fu Generation Kokeshieru, Invader Kraft Werk, Twin Heaven Right God Kushinada, Light Weapon La Rose Blouet, Blue Flower Dragon Elemental Last, Aqua Patrol Latius, Vizier of Mystery Law Guard, Geared for War Lionel, Zenith of "Ore" Lionel Finale, Zenith of "Lion" Max, Rage Crystal Mia Nbaba, Nbibi Mobile Stronghold Plamilion Musha Lupia Muttamegas, Spirit of the White Lion Nemes Tebe, Royal Elemental No Data Ouks, Vizier of Restoration Ov Sidia Ov Sidia DG Overborder, the Holy Protector Brave P.M.O.M.Y Padma Romasa, Spirit Knight Pakulpan, Phantom Thief Paruda, Sound Dragon Elemental Pegasaremu, Blessed Bow Dragon Elemental Proteus, Spirit of Holy Force Proton, the Original God Raza Vega, Thunder Guardian Rhapsody, Golden Fighter Riku, the Oracle Ringal, Blue Voice Dragon Elemental Rockcrusher, Earth's Wrath Rondobil, the Explorer Rosetta, Gem Dragon Elemental Saint Maria, Light Weapon Saizoumist, Dolge Shakuseal, Replenish Dragon Elemental Sir Albides, Noble Deathknight Skysword, the Savage Vizier Sokola, Strange Stone Steel Mask Brikion Sterios, White Knight Guardian Sun's Creed, Spirit of Revelation Talu, Magic Ball The Lionel, Zenith of "Leo" Trenchdive Shark Trueking Viola Sonata Truename Arashi Tiger Truename Lalala Lionel Truename White of Lionel Ulcelios, Spirit of the Holy Core Ultra Miracluppi Ultra Star, Revolution Holy Dragon V-Y, the Patroller Valhait, Lucky Dragon Elemental Valhalla Paladin, Sealing Dragon Elemental White Night, Edge of Yin Yang Wired, Spirit Knight Right God Zanbara, Masked Vizier Zardia, Spirit of Bloody Winds
Asura, the Great Enigma Balphalt, Spirit Meteor Glena Vuele, the Hypnotic Gulliver Verdure, the Earth Breaker Loth Rix, the Iridescent Miracle Star, Revolution Heaven King Naraga Maagura, Three Kingdoms Oracion, Mysterious Samurai Shildite, Holy Ball Shinran, the Awakener Supernova Grand Cross Absolute Cure Vibros Heaven, Lord of Dragon Spirits Wheel Warrior W, Invincible Warrior White Knight HEAVEN, Lord of Spirits Wise Starnoid, Avatar of Hope