Source: Yugioh Wikia
An Extra Link is a series of co-linked Link Monsters that connects one Extra Monster Zone to the other. The monsters that make up the Extra Link are considered to be Extra Linked; additionally, any monster co-linked to an Extra Linked monster is also Extra Linked. An Extra Link is formed regardless of which player controls the monsters, including the monsters in the Extra Monster Zones.
An Extra Link can also be accomplished with fewer monsters with co-linked monsters pointing diagonally.
If Link Summoning a Link Monster in an Extra Monster Zone would create an Extra Link, the player can do so even if they already control a monster in the other Extra Monster Zone; this is the only way for a player to control monsters in both Extra Monster Zones
Gameplay and terminology Card layout Rarities Card types
Monster
Spell Trap Skill
Normal • Continuous • Field
Other†
Equip •
Ritual •
Speed Spell (
Normal •
Quick-Play •
Ritual )
Non-game •
Character •
Checklist •
FAQ •
Strategy •
Tip Related
Game mechanics
Card effects
Types
Condition (Archetype • Archetype-exclusion • Level • Name • Rank • Summoning • Common • Normal • Special • Fusion • Ritual • Victory ) • Cost (Maintenance cost ) • Monster • Continuous • like • Ignition • Like • Quick • Like • Trigger • Like • Flip • Unclassified • Control only one • Field-Unique • Match winner • Summon monster • Unconfirmed
Mandatory •
Optional •
Lingering •
Once per turn Speeds
Summoning
Types Mechanics
Summoning Rules •
Double Tributer •
Material • (
Fusion •
Fusion Substitute •
Synchro •
Synchro Substitute •
Xyz •
Link ) •
Alloy † •
Alloy Substitute † •
Broadcast † •
Broadcast Substitute † •
Burst † •
Burst Substitute † •
Chain-force † •
Chain-force Substitute † •
Chainlink † •
Chainlink Substitute † •
Chaos † •
Chaos Substitute † •
Code † •
Code Substitute † •
Composition † •
Composition Substitute † •
Constellation † •
Constellation Substitute † •
Construct † •
Construct Substitute † •
Cosmic † •
Cosmic Substitute † •
Cross † •
Cross Substitute † •
Crossover † •
Crossover Substitute † •
Dark Bind † •
Dark Bind Substitute † •
Delta † •
Delta Substitute † •
Dreamer † •
Dreamer Substitute † •
Driver † •
Driver Substitute † •
Emblem † •
Emblem Substitute † •
Enchant † •
Enchant Substitute † •
Enhance † •
Enhance Substitute † •
Esper † •
Esper Substitute † •
Evolute † •
Evolute Substitute † •
Evolution † •
Evolution Substitute † •
Extract † •
Extract Substitute † •
Extreme † •
Extreme Substitute † •
Galaxy † •
Galaxy Substitute † •
HYPERFORCE † •
HYPERFORCE Substitute † •
Hybrid † •
Hybrid Substitute † •
Imaginary † •
Imaginary Substitute † •
Legend † •
Legend Substitute † •
Legion † •
Legion Substitute † •
Maestro † •
Maestro Substitute † •
Mana † •
Mana Substitute † •
Marshal † •
Marshal Substitute † •
Master † •
Master Substitute † •
Mega † •
Mega Substitute † •
Mirage † •
Mirage Substitute † •
Mixmatch † •
Mixmatch Substitute † •
Neon Positive † •
Neon Positive Substitute † •
Nova † •
Nova Substitute † •
Overdrive Material † •
Overdrive Substitute Monster Substitute † •
Parallel † •
Parallel Substitute † •
Persona † •
Persona Substitute † •
Plasma † •
Plasma Substitute † •
Positive † •
Positive Substitute † •
Pressure † •
Pressure Substitute † •
Quasar † •
Quasar Substitute † •
Reactor Material † •
Reactor Substitute Monster Substitute † •
Resolve † •
Resolve Substitute † •
Reverse † •
Reverse Substitute † •
Royal † •
Royal Substitute † •
Spectrum † •
Spectrum Substitute † •
Spiritual † •
Spiritual Substitute † •
Terrain † •
Terrain Substitute † •
Timewarp † •
Timewarp Substitute † •
Transmute † •
Transmute Substitute † •
Triad † •
Triad Substitute † •
Unification † •
Unification Substitute † •
Unity † •
Unity Substitute † •
Upgrade † •
Upgrade Substitute † •
Voodoo † •
Voodoo Substitute † •
Wild Card † •
Wild Card Substitute † •
Xynchro † •
Xynchro Substitute † •
Normal Summon Monster •
Special Summon-only •
Nomi •
Ignoring the Summoning conditions
Other
Activation & Targeting Eligibility •
Activation requirement •
Difference between Costs and Effects •
Chains, Activation, and Resolution •
Engine (
Draw ) • Advantage •
Card •
Field •
Hand •
One Turn Kill (
First •
Zero ) •
Lockdown • Loop (
Controlled loop •
Infinite loop )
† Does not exist in the OCG or TCG