Mana Feed is a slang term given to the abilities that put creatures or other cards in the battle zone into its owner's mana zone.
It is a form of
Removal belonging to cards in the Nature Civilization. It is often costed at the same costs as an equivalent Darkness card, e.g.; Terror Pit and Natural Snare, Ragmal, Spirit Knight and Necrodragon Abayo Shabayo.
Nature / Spell / 6
Shield trigger (When this spell is put into your hand from your shield zone, you may cast it immediately for no cost.)
■ Choose one of your opponent's creatures in the battle zone and put it into his mana zone.
While it does increase the amount of cards in your opponents mana zone, giving them more access to mana and allowing them to cast higher cost cards earlier, it's able to be used on a lot of creatures with abilities that prevent them from being destroyed. However, like bounce or other alternate removal from usual destroy effects, it has no effect on cards that can't leave the battle zone.
In small amounts, Mana Feed can also put cards from other zones into the mana zone, e.g.;
Terradragon Dagradolgran (Shield) and Kishima Giant (hand).
Mana of the spells with the Mana Feed ability feature トラップ
(Trap) in their name.
Dragon Saga block of sets, it was seen as 毒 (poison).
List of Mana Feed cards
Aun Giant Auravine, Earth's Grasp Barbeque Giant Brontovenom, Chained Reincarnation Kind Bucket Bucket, Fairy of the Enduring Snow Bultratops, Leaf Wind Kind Burst Totem Cemetarian, the Invoked Chake, Snow Faerie Channel Totem Dangerdeon, Super Mechanical Trap / Hell Utopia's Trap Revelation Dokugeta, Toxic Acid Trap Jaw Donide Rattera, Matchless Divine Destruction Erikatchu, Snow Faerie Fabula Snail / Gorchop Trap Final Dogiragolden Forever Princess, Eternal Ruler Gaia Giant Gardener, the Invoked Habanero Giant Hyper Gigatack / Gigatack Hyper Trap Irokero, Poison Style Italic Giant Katsuemon, Blade 3 Kinokoala Kishima Giant Kuromame Danshaku / Hakumai Danshaku Magnolia, Satori's Fertility Manner Giant Mastika Panzer Moai Land, Ancient Paradise Mushimutama Myscu, Mirage Na Turalgo Danger / Natural Trap Night's Cottsuna Onion Ring Princess Cub, the Crusher Pteratox, Large Wing Chain Puchohenza, Mia Moja Pumppump Panzer Radia, Spirit Knight Ragmal, Spirit Knight Ragmatox, Poison Class Rhino, Go Straight Royal Durian Rutsparfait Panzer Shimuzusu Silver Scoop Skyscraper Shell Storm Shell Superior Silkid Terradragon Dagradolgran Terradragon Geobreed The=Deadbrachio, World Evil Dragonkind Torierre, Armament Fairy Trap Giant Traptops, Green Trap Toxickind Truename Giant Mac Truename Megapounder Mack Tyranno Venom, Chain Ruler Vessflopstox, Poison Type Yadoc, Beast Army Zapping Beans Zugian Totem
Ballom Quake, Lord of Demons Geo Aldebaran, the Okami Breaker Gou Daigo, Amazing Artiste Grimm Grime, Amazing Artiste Gyogyoras, Traitorous Revolutionkind Halsa, the Great Enigma Hannya, the Great Enigma Iggy Specials, Climax of the "End" Sanmadd, S-Rank Tribe Shinra, the Great Expanse Startdash Buster, Divine Hero Mech Super Dash Buster, Divine Hero Mech Supernova Uranus Ninetails Torikera X, Revolution Rushkind
Other Mana Feed cards;