- "Swift Gaia the Fierce Knight" and "Gaia the Fierce Knight" are considered 2 separate monsters so you can have 3 of each in your Deck.
- You can't use "Swift Gaia the Fierce Knight" as Fusion Material for "Gaia the Dragon Champion".
- You can use "Swift Gaia the Fierce Knight's" effect to Summon it (without Tribute) using "Ultimate Offering".
- Your opponent can use "Trap Hole" against "Swift Gaia the Fierce Knight" because it's a Normal Summon.
- You cannot Set "Swift Gaia the Fierce Knight" with "Major Riot", even if "Swift Gaia the Fierce Knight" is the only card in your hand.
- You cannot chain to the effect of "Swift Gaia the Fierce Knight" because it's treated as a Normal Summon. But you can respond to the Normal Summon just like you would to any other Summon.
- You can summon "Swift Gaia the Fierce Knight" from your hand even after you've already Normal Summon a monster since it would be the only card in your hand.