Arisen Gaia the Fierce Knight
Level 7 DARK/Warrior Effect2300 ATK / 2100 DEF
If your opponent controls more monsters than you do, you can Normal Summon this card without Tributing. If this card is Tributed: You can Special Summon 1 "Black Luster Soldier" monster from your hand or Graveyard. You can only use this effect of "Arisen Gaia the Fierce Knight" once per turn. When you Ritual Summon a "Black Luster Soldier" monster, you can banish this card from your Graveyard as 1 of the monsters required for the Ritual Summon.
Charging Gaia the Fierce Knight
Level 7 LIGHT/Warrior Effect2300 ATK / 2100 DEF
You can Normal Summon this card without Tributing. If this card is Normal Summoned without Tributing, its original ATK becomes 1900. If this card is Tributed: You can add 1 "Black Luster Soldier" monster from your Deck to your hand. You can only use this effect of "Charging Gaia the Fierce Knight" once per turn.
Gaia The Fierce Knight
Level 7 EARTH/Warrior Normal2300 ATK / 2100 DEF
''A knight whose horse travels faster than the wind. His battle-charge is a force to be reckoned with.''
Gaia the Fierce Knight Origin
Level 4 EARTH/Warrior Effect1600 ATK / 1200 DEF
This card can be treated as 2 Tributes for the Tribute Summon of a Warrior monster. You can only use each of the following effects of "Gaia the Fierce Knight Origin" once per turn. You can send 1 Level 5 or higher monster from your hand to the GY; Special Summon this card from your hand. During the Battle Phase (Quick Effect): You can banish this card from your GY, then target 1 monster on the field whose current ATK is different from its original ATK; its ATK becomes its original ATK.
Heart of Gaia
Level 6 EARTH/Warrior Effect2300 ATK / 2100 DEF
(This card is always treated as a "Millennium" and "Gaia The Fierce Knight" card.)
If a Level 5 or higher Monster Card is on the field, you can Normal Summon this card without Tributing. The Level of any monster your opponent Normal or Special Summons in Attack Position, while this card is in your Monster Zone, is increased by 7. When your opponent activates a monster effect (Quick Effect): You can send 1 other face-up Level 5 or higher Monster Card you control to the GY; negate the activation, and if you do, destroy that card. You can only use this effect of "Heart of Gaia" once per turn.
Lord Gaia the Fierce Knight
Level 7 EARTH/Warrior Effect2300 ATK / 2100 DEF
If your opponent controls a monster and you control no monsters, you can Special Summon this card (from your hand). Once per turn, if a monster(s) with ATK higher than this card is Special Summoned to your opponent's field (except during the Damage Step): You can make this card gain 700 ATK until the end of this turn.
Soldier Gaia the Fierce Knight
Level 8 DARK/Warrior Effect2600 ATK / 2100 DEF
(Quick Effect): You can Tribute 1 Dragon Fusion Monster; Special Summon this card from your hand. If this card is Special Summoned: You can target 1 Attack Position monster on the field; change it to Defense Position. You can Tribute this card; add 1 Level 7 or higher Warrior monster from your Deck to your hand, except "Soldier Gaia the Fierce Knight". You can only use each effect of "Soldier Gaia the Fierce Knight" once per turn.
Swift Gaia the Fierce Knight
Level 7 DARK/Warrior Effect2300 ATK / 2100 DEF
If this is the only card in your hand, you can Normal Summon it without Tributing.