| Infinitrack TunnellerThe Infinity Chasers · 006 | The Infinity Chasers | 006 | Super Rare | €0.21 |
| Infinity DarkGladiator's Assault · 027 | Gladiator's Assault | 027 | Common | $0.15 |
| Infinity of the Sacred Beasts - Raviel, Lord of PhantasmsChaos Origins · 007 | Chaos Origins | 007 | Super Rare | $0.86 |
| Influence DragonGalactic Overlord · 093 | Galactic Overlord | 093 | Common | $0.11 |
| Informer SpiderAbsolute Powerforce · 024 | Absolute Powerforce | 024 | Common | $0.11 |
| Inherited FortuneStardust Overdrive · 067 | Stardust Overdrive | 067 | Rare | €0.28 |
| Injection Fairy LilyLegacy of Darkness · 100 | Legacy of Darkness | 100 | Secret Rare | $0.53 |
| InmatoCrimson Crisis · 031 | Crimson Crisis | 031 | Rare | €0.16 |
| Inner ConflictSpeed Duel Starter Decks: Twisted Nightmares · 01 | Speed Duel Starter Decks: Twisted Nightmares | 01 | Common | €0.16 |
| InpachiPharaonic Guardian · 055 | Pharaonic Guardian | 055 | Common | $0.10 |
| In Papa's FootstepsLegacy of Destruction · 070 | Legacy of Destruction | 070 | Common | €0.05 |
| Insect Armor with Laser CannonNumber Hunters · 057 | Number Hunters | 057 | Super Rare | €0.22 |
| Insect BarrierPharaoh's Servant · 102 | Pharaoh's Servant | 102 | Common | €0.08 |
| Insect ImitationPharaoh's Servant · 068 | Pharaoh's Servant | 068 | Common | €0.02 |
| Insect InvitationRage of the Abyss · 083 | Rage of the Abyss | 083 | Common | €0.06 |
| Insect KnightFlaming Eternity · 004 | Flaming Eternity | 004 | Common | $0.76 |
| Insect Monster TokenUnlisted Printings | Unlisted Printings | — | — | — |
| Insect NeglectStardust Overdrive · 061 | Stardust Overdrive | 061 | Common | €0.06 |
| Insect PrincessInvasion of Chaos · 080 | Invasion of Chaos | 080 | Ultra Rare | €0.05 |
| Insect QueenCollectible Tins 2004 · 005 | Collectible Tins 2004 | 005 | Secret Rare | €0.04 |
| Insect Soldiers of the SkyMetal Raiders · 101 | Metal Raiders | 101 | Common | €0.15 |
| InspectionPharaoh's Servant · 038 | Pharaoh's Servant | 038 | Common | €0.02 |
| Inspector BoarderExtreme Force · 035 | Extreme Force | 035 | Secret Rare | €0.11 |
| InspirationBattle Pack 3: Monster League · 232 | Battle Pack 3: Monster League | 232 | Common | €0.06 |
| Instant ContactPower of the Elements · 052 | Power of the Elements | 052 | Secret Rare | $0.28 |
| Instant FusionCyberdark Impact · 040 | Cyberdark Impact | 040 | Common | €0.30 |
| Instant Neo SpacePhantom Darkness · 048 | Phantom Darkness | 048 | Common | €0.16 |
| InterceptThe Duelist Genesis · 076 | The Duelist Genesis | 076 | Super Rare | €0.42 |
| InterceptomatoJudgment of the Light · 003 | Judgment of the Light | 003 | Common | €0.08 |
| Intercept WaveThe Shining Darkness · 050 | The Shining Darkness | 050 | Ultra Rare | €1.45 |
| Interdimensional Matter ForwarderThe Infinite Forbidden · 066 | The Infinite Forbidden | 066 | Common | €0.04 |
| Interdimensional Matter TransporterDark Crisis · 052 | Dark Crisis | 052 | Ultra Rare | €0.07 |
| Interdimensional WarpGladiator's Assault · 078 | Gladiator's Assault | 078 | Common | €0.12 |
| Interplanetary Invader "A"Light of Destruction · 034 | Light of Destruction | 034 | Common | €0.07 |
| Interplanetarypurplythorny BeastLegacy of the Valiant · 098 | Legacy of the Valiant | 098 | Common | €0.03 |
| Interplanetarypurplythorny DragonOrder of Chaos · 085 | Order of Chaos | 085 | Common | $0.05 |
| Interrupted Kaiju SlumberBreakers of Shadow · 089 | Breakers of Shadow | 089 | Super Rare | €0.25 |
| Interrupt ResistorCybernetic Horizon · 097 | Cybernetic Horizon | 097 | Rare | €0.05 |
| Intimidating Ore - SummonitePhoton Hypernova · 080 | Photon Hypernova | 080 | Common | €0.05 |
| Into the Darkness BelowSpeed Duel Starter Decks: Twisted Nightmares · 02 | Speed Duel Starter Decks: Twisted Nightmares | 02 | Common | €0.19 |
| Into the VoidThe Shining Darkness · 049 | The Shining Darkness | 049 | Ultra Rare | €0.38 |
| Intrigue ShieldShadow Specters · 072 | Shadow Specters | 072 | Common | €0.04 |
| Introduction to GallantryForce of the Breaker · 053 | Force of the Breaker | 053 | Common | €0.04 |
| Intruder Alarm - Yellow AlertBattles of Legend: Armageddon · 003 | Battles of Legend: Armageddon | 003 | Ultra Rare | €0.04 |
| Invader from Another DimensionAstral Pack Seven · 014 | Astral Pack Seven | 014 | Short Print | €7.72 |
| Invader of DarknessInvasion of Chaos · 111 | Invasion of Chaos | 111 | Secret Rare | €0.04 |
| Invader of the ThroneMagic Ruler · 026 | Magic Ruler | 026 | Super Rare | €0.09 |
| Invasion of FlamesRise of Destiny · 024 | Rise of Destiny | 024 | Common | €0.06 |
| Inverse UniverseAbsolute Powerforce · 080 | Absolute Powerforce | 080 | Short Print | $0.11 |
| InvigorationStarter Deck: Kaiba · 021 | Starter Deck: Kaiba | 021 | Common | €0.09 |