Skill

Skill (スキル, Sukiru) is a special rule characteristic of Speed Duels featured in Yu-Gi-Oh! Duel Links and the Yu-Gi-Oh! VRAINS anime.

Yu-Gi-Oh! VRAINS

In Yu-Gi-Oh! VRAINS, Skills are special effects that each player can only use once per Duel. They may possess a number of effects, like improving a draw, increasing one's LP or enhancing a monster's ATK. They can be used during either player's turn. Skills appear to be procedurally-generated, though rather than being generated randomly like they would be in real world video games, they appear to be generated to fit a Duelist's deck and/or Dueling style. As seen with Playmaker and Revolver, multiple Duelists can share a given skill.

Skills can be hacked to do previously unheard-of abilities, such as the Double Draw skill used by a Knight of Hanoi.

List of Skills

Skill	User	Ability	Picture
Double Draw (ダブルドロー, Daburu Dorō)	Unnamed Knight of Hanoi	The user draws two cards for their normal draw during their Draw Phase.
Storm Access (ストームアクセス, Sutōmu Akusesu)	Playmaker, Revolver	If the user has 1000 or less LP, the user randomly obtains a Link Monster from a nearby Data Storm and adds it to their Extra Deck. The more intense the Data Storm, the stronger the obtained Link Monster will be. The obtained card can then be materialized in the real world with the proper equipment.
Fighting Spirit (闘魂, Tōkon)	Go Onizuka	The user Special Summons all "Gouki" monsters that were destroyed by battle this turn.
Trickstar Fraud (トリックスターフロード, Torikkusutā Furōdo)	Blue Angel	During the opponent's turn, the user discards a "Trickstar" card to make the opponent draw until they have 3 cards in their hand. During the End Phase, the opponent must banish a card from their hand for each "Trickstar" monster in the user's GY.
Secret Cure (シークレットキュア, Shīkuretto Kyua)	Ghost Girl	The user excavates cards from their Deck until a Monster Card is revealed. That monster is added to the hand, all non-Monster Cards are sent to the GY, and both players gain LP equal to that monster's ATK.
Preserve Species (種の保存, Shu no Hozon)	Dr. Genome	When a Link Monster is Special Summoned from the GY, the opponent's LP and one of their monsters' ATK are halved.
Forbidden Surgical Operation (フォビドゥン・サージカル・オペレーション, Fobidun Sājikaru Operēshon	Baira	The user banishes 2 Level 2 or lower monsters that with the same name from their GY to Special Summon 2 monsters with same name, whose Levels are equal to the banished monsters', from their Deck.
Double Bite (ダブルバイト, Daburu Baito)	Faust	Once during the Duel, one Insect-type monster of the user can attack twice.
Triple Draw (トリプルドロー, Toripuru Dorō)	AI Duelist	Unknown	N/A

Yu-Gi-Oh! Duel Links

In Yu-Gi-Oh! Duel Links, each character has 3 Skills obtainable by raising their level, in addition to this characters can obtain additional Skills as drops from Legendary Duelists. Currently, 1 Skill, Joey's Fields of the Warriors, is obtained through Special Events special events.

The skills that can be dropped by Legendary Duelists is a pool of generic and character-specific Skills. If a character has already obtained a Skill, the player is notified that the Skill has already been unlocked and that the reward was substituted with 15 gems instead (they do not get a different skill).

Along with the game's Forbidden and Limited Lists, Skill effects are subject to change to maintain balance.

The Duel Links Legend Deck Guide listed certain Skills as suggestions for casual play using the Legend Decks in the guide.

List of Skills

Skill	User(s)	Description
Aroma Strategy	Mai Valentine - Level 4	You can look at the card at the very top of your Deck at any time.
Beatdown	Seto Kaiba - Level 13	This turn, the ATK of all face-up monsters on your field increases by the number of monsters of Level 5 or higher on your field times 300. This skill can only be used once per turn.
Buzz On	Weevil Underwood - Drop	Can be used each time your Life Points decrease by 1800. In the Draw Phase, instead of doing a normal draw, draw a random Insect-Type monster.
Destiny Draw	Yami Yugi - Drop	Can be used each time your Life Points decrease by 2000. In the Draw Phase, instead of doing a normal draw, draw the card of your choice.
Dino Destruction	Rex Raptor - Level 20	Can be used if a Level 6 Dinosaur-Type monster is on your field. If that monster attacks a monster in Defense Position this turn, the opponent takes battle damage equal to the amount that ATK exceeds DEF. This skill can only be used once per turn.
Dino Rampage	Rex Raptor - Drop	Can be used each time your Life Points decrease by 1800, and you have a Dinosaur-Type normal monster on your field. That monster can attack twice during the Battle Phase, this turn. This skill can only be used once per turn.
Dinos Find a Way	Rex Raptor - Drop	Can be used each time your Life Points decrease by 1800. In the Draw Phase, instead of doing a normal draw, draw a random Dinosaur-Type monster.
Dinosaur Kingdom	Rex Raptor - Level 4	Begin Duel with the Field Spell "Jurassic World" activated.
Draw Pass	Mai Valentine - Drop	In the Draw Phase, instead of doing a normal draw, recover 300 Life Points. This skill can only be used three times per Duel.
Draw Sense: High Level	Seto Kaiba - Level 20 Rex Raptor - Level 13	Can be used each time your Life Points decrease by 1800. In the Draw Phase, instead of doing a normal draw, draw a random monster of Level 5 or higher.
Draw Sense: Low Level	Weevil Underwood - Level 13	Can be used each time your Life Points decrease by 1800. In the Draw Phase, instead of doing a normal draw, draw a random monster of Level 4 or lower.
Draw Sense: Spell/Trap	Yami Yugi - Level 13	Can be used each time your Life Points decrease by 1800. In the Draw Phase, instead of doing a normal draw, draw a random Spell/Trap card.
Draw Sense: WIND	Mai Valentine - Level 20	Can be used each time your Life Points decrease by 1500. In the Draw Phase, instead of doing a normal draw, draw a random WIND-attribute monster.
Duel, Standby!	Téa Gardner - Drop	Gives 1 more card in each player's starting hand.
Fields of the Warriors	Joey Wheeler - Mission Bingo	Begin Duel with the Field Spell "Sogen" activated.
Flight of the Harpies	Mai Valentine - Drop	Can be used each time your Life Points decrease by 1800. In the Draw Phase, instead of doing a normal draw, draw a random "Harpie" card.
Grandpa's Cards	Yugi Muto - Level 4	Begin Duel with 5 Exodia pieces in your Deck.
Grit	Joey Wheeler - Level 13	Skill activation is determined by probability at the start of each of your opponent's turns. Until the end of your opponent's next turn, your Life Points will not fall below 1.
Harpies' Hunting Ground	Mai Valentine - Drop	Begin the Duel with the Field Spell Card "Harpies' Hunting Ground" on the top of your deck.
Harpies' Last Will	Mai Valentine - Drop	6 "Harpie" cards in your Graveyard are banished, and 1 "Harpie's Feather Duster" card is added to your hand from outside your Deck.
Heavy Starter	Seto Kaiba - Drop	If you have 3 or more Level 5 or higher monsters with different names in your Deck, you will have an improved chance of having a Level 5 or higher monster in your starting hand.
Holy Guard	Téa Gardner - Level 4	You take no battle damage during your turn.
Insect Uprising	Weevil Underwood - Level 4	Can be used if there are 3 or more Insect-Type monsters on your field. Lowers ATK of all face-up monsters on the opponent's field by 800 points. This skill can only be used once per turn.
Moth to the Flame	Weevil Underwood - Drop	Turn counts are double-speed for any Petit Moth with Cocoon of Evolution equipped on your side of the field.
Last Gamble	Joey Wheeler - Drop	Can be used in your Main Phase, starting from the fifth turn. Upon activation, reduces your LP to 100 and discards 2 cards from your hand. You roll a die and draw that number of cards. This skill can only be used once per Duel.
Life Cost 0	Téa Gardner - Level 20	Can be used if your Life Points are at 1000 or below. Until the end of the opponent's next turn, you do not have to pay Life Points to activate a card. This skill can only be used once per Duel.
LP Boost α	Joey Wheeler - Level 4 Mai Valentine - Drop	Increases starting Life Points by 1000.
LP Boost β	Mai Valentine - Level 13	Increases starting Life Points by 1500, reduces hand by 1 card.
LP Boost γ	Joey Wheeler - Drop Téa Gardner - Level 13	Increases starting Life Points by 2500, reduces hand by 2 cards.
Luck on Your Side	Joey Wheeler - Drop	If your Life Points drop below 1000, your coin tosses always land on heads.
Parasite Infestation	Weevil Underwood - Level 20	After starting hands are dealt, a random number of "Parasite Paracide" cards are added to the opponent's Deck, face-up.
Peak Performance	Seto Kaiba - Level 4	Begin Duel with the Field Spell "Mountain" activated.
Power of Dark	Yami Yugi - Level 4	Begin Duel with the Field Spell "Yami" activated.
Reinforcements	Joey Wheeler - Level 20	Can be used each time your Life Points decrease by 1800. In the Draw Phase, instead of doing a normal draw, draw a random Warrior-Type monster.
Restart	Yugi Muto - Level 20
Roll 'n' Boost	Joey Wheeler - Drop	Can be used each time your Life Points decrease by 2000. Show 1 monster card in your hand to the opponent and roll the die once. The Level of the monster shown becomes that of the die number until the end of the turn.
Sorcery Conduit	Yami Yugi - Level 20	Can be used each time your Life Points decrease by 1800. In the Draw Phase, instead of doing a normal draw, draw a random Spellcaster-Type monster.
Surprise Present	Téa Gardner - Level 20	Select 1 card Set in your Spell & Trap Zone, and force it on your opponent. Only the player that activates this skill can view this card. This skill can only be used once per Duel.
Titan Showdown	Rex Raptor - Drop	Whichever player has double or more LP than the other takes double battle damage.
The Tie that Binds	Yugi Muto - Level 13	Until the end of your turn, the ATK of all face-up monsters on your field increases by the number of monsters on your field times 100. This skill can only be used once per turn.

Duel Links Legend Deck Guide

Skill	Official English Name	Character	Ability	Picture
Power of Dark (闇の力, Yami no Chikara)	Power of Dark	Yami Yugi Skill	You begin the Duel with the Field Spell Card "Yami" active.
Sorcery Invitation (魔導招来, Madō Shōrai)	Sorcery Conduit	Yami Yugi Skill	When your LP became 1800, during your Draw Phase, instead of your normal draw, draw a random Spellcaster monster.
Destiny Draw (ディスティニードロー, Disutinī Dorō)	Destiny Draw	Yami Yugi Skill	When your LP became to 2000, during your Draw Phase, instead of your normal draw, you can draw whichever card you choose.
Those Who Stand at the Top (頂に立つ者, Itadaki ni Tatsu Mono)	Peak Performance	Seto Kaiba Skill	You begin the Duel with the Field Spell Card "Mountain" active.
Pulverize! (粉砕！, Funsai!)	Beatdown	Seto Kaiba Skill	Once per turn, this turn, all monsters you control gains 300 ATK for each Level 5 or higher monsters you control.
Heavy Starter (ヘビースターター, Hebī Sutātā)	Heavy Starter	Seto Kaiba Skill	If there are 3 or more different Level 5 or higher monsters in your Deck, your opening hand will include 1 Level 5 or higher monster.
Restart (リスタート, Risutāto)	Restart	Generic Skill	After you draw your opening hand, you can redraw it.
LP Boost α (ＬＰ増強α, Raifupointo Zōkyō Arufa)	LP Boost α	Generic Skill	Increase your initial LP by 1000.
Draw Sense: Spell/Trap (ドローセンス: 魔法・罠, Dorō Sensu: Mahō/Torappu)	Draw Sense: Spell/Trap	Generic Skill	Can be used when your LP decreases to 1800. During your Draw Phase, instead of your regular draw, draw a random Spell/Trap Card.