I guess no new mechanic confirmed.
We got our first look at "Rise of the Duelist"
Gaia the Magical Knight
LIGHT Warrior Effect Monster
LV7 2300/2100
(This card is always treated as "Gaia the Fierce Knight")
You can only use the (2) effect of this card's name once per turn.
(1) If you control no monsters or if your opponent controls a monster with 2300 or more ATK, you can Normal Summon this card without Tribute.
(2) If this card is Normal or Special Summoned: You can Special Summon 1 Level 5 Dragon monster from your hand or GY in Defense Position.
Cursed Dragon – Curse of Dragon
DARK Dragon Effect Monster
LV5 2000/1500
You can only use each effect of this card's name once per turn.
(1) If this card is Normal or Special Summoned: You can add 1 Spell/Trap that specifically mentions "Gaia the Dragon Champion" from your Deck to your hand.
(2) If this card is sent to the GY: You can target 1 "Gaia the Dragon Champion" you control; negate the effects of all face-up monsters your opponent controls that have ATK equal to or less than that monster's.
Bombarding Catapult Turtle
WATER Aqua Effect Monster
LV4 1000/2000
You can only use the effect of this card's name once per turn.
(1) Tribute 1 monster you control;Special Summon 1 "Gaia the Fierce Knight" monster OR 1 Level 5 Dragon monster from your hand or Deck.
Soldier Gaia the Fierce Knight
DARK Warrior Effect Monster
LV8 2600/2100
You can only use each effect of this card's name once per turn.
(1) (Quick Effect): Tribute 1 Dragon Fusion Monster you control; Special Summon this card from your hand.
(2) If this card is Special Summoned: You can target 1 Attack Position monster on the field;change that monster to Defense Position.
(3) 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".
Gaia the Magical Dragon Champion
WIND Dragon Fusion Effect Monster
LV7 2600/2100
Materials: 1 "Gaia the Fierce Knight" monster + 1 Level 5 Dragon monster
You can only use the (2) and (3) effect of this card's name each once per turn.
(1) While this card is in a Monster Zone, it's card name is treated as "Gaia the Dragon Champion".
(2) During the Main Phase: You can target 1 other card on the field; this card loses 2600 ATK; destroy that target.
(3) If this card destroys an opponent's monster by battle: This card gains 2600 ATK.
Charging Gaia
Field Spell Card
You can only use the (2) effect of this card's name once per turn.
(1) If you control "Gaia the Dragon Champion", your opponent cannot activate effects during the Battle Phase.
(2) Apply one of the following.
• You can reveal 1 "Gaia the Fierce Knight" monster in your hand; add 1 Level 5 Dragon monster from your Deck to your hand.
• You can reveal 1 Level 5 Dragon monster in your hand; add 1 "Gaia the Fierce Knight" monster from your Deck to your hand.
Spiral Fusion
Normal Spell Card
(1) Fusion Summon 1 Dragon Fusion Monster from your Extra Deck using monsters from your hand or that you control as material. A "Gaia the Dragon Champion" Summoned by this card gains 2600 ATK and can make 2 attacks against monsters per Battle Phase.
Spiral Discharge
Continuous Trap
You can only use the 2nd effect of "Spiral Discharge" once per turn.
(1) While you control a "Gaia the Dragon Champion in a Monster Zone, your opponent cannot target other monster(s) you control for an attack, except "Gaia the Dragon Champion".
(2) When an attack is declared involving your "Gaia the Dragon Champion", you can target 1 card on the field; destroy it.
Spiral Reborn
Normal Trap Card
You can only activate 1 "Spiral Reborn" per turn.
(1) Target 1 Level 7 or lower Dragon monster in your GY; Special summon it. A "Gaia the Dragon Champion" Summoned by this card cannot be targeted or destroyed by your opponent's card effect(s).
Source:
The first cards of Rise of the Duelist has just been announced and some pretty interesting legacy support just got confirmed… Gaia the Fierce Knight support which even gives the deck OTK capabilities!
beyondtheduel.com