Mokuba has been added to the Gate on Feb 13 2017. Now you can unlock him by completing Mokuba unlock missions. You need to reach Stage 13 (DM) in Duel Word to see him.
Since Mokuba is now available at the Gate now, you don't have to play this limited-time event to unlock Mokuba.
|[Skill] description||How to get|
Can be used each time your Life Points decrease by 1500. Once per turn, send 1 Monster on your side of the field (except a Token) to summon 1 random Monster (that can be Normal Summoned) from your deck whose attribute and type are same to and level is 1 higher than the tributed monster.
If your Deck has 3 or more Level 5 or higher monsters with different names, you will have improved chance of having a Level 5 or higher monster in your starting hand.
|Draw Sense: LIGHT|
Can be used each time your Life Points decrase by 1500. In the Draw Phase, instead of doing a normal draw, draw a random Light attribute monster.
Can be used each time your Life Points decrease by 1800. In the Draw Phase, instead of doing a normal draw, draw a random Prismatic or Glossy Card.
Can be used each time your Life Points decrease by 1500. Once per turn, send 1 Monster on your side of the field (except a Token) to summon 1 random Monster (that can be Normal Summoned) from your deck whose attribute and type are same to and level is 1 lower than the tributed monster.
|4||Skill: Monstermorph: Evolution|
|5||Deck Slot (Mokuba Kaiba)|
|8||Deck Slot (Mokuba Kaiba)|
|13||Skill: Heavy Starter|
|16||Ruins of the Divine Dragon Lords|
|20||Skill: Draw Sense: LIGHT|
|25||Lady of D.|
|27||Deck Slot (Mokuba Kaiba)|
|36||UR Jewel x1|
|38||Lady of D.|
|40||Guardian of Felgrand|
|41||Deck Slot (Mokuba)|
|45||Ruins of the Divine Dragon Lords|
|Card / [Rarity]||Level|
|Darkflare Dragon [UR]||30 or more|
|Frost and Flame Dragon [UR]||30 or more|
|Kidmodo Dragon [SR]||30 or more|
|Divine Dragon Apocralyph [SR]||30 or more|
|Beacon of White [SR]||30 or more|
|Advance Draw [SR]||30 or more|
|Lava Dragon [R]||All levels|
|Divine Dragon Ragnarok [R]||All levels|
|Dragon's Rage [R]||All levels|
|D. Tribe [N]||All levels|
|The Dragon's Bead [N]||All levels|
Mokuba is Kaba Seto’s younger brother who is totally devoted to his brother. Although he is not seen as a duelists and is frequently get kidnapped several times by his brother’s enemies, but his supporting roles is not less important than any other main characters. For his beloved brother’s honor, he won’t back down for any challenge.
In the Yu-Gi-Oh Duel Terminal, a player can challenge against Mokuba Kaiba. He uses the following three cards at least.