Balancing Booster Sets #1 - Legend of Blue-Eyes White Dragon

[Baneful]

In this series, I'm going back in time and revising the booster sets to how the cards should have been made.  Particularly in the early sets, there were about 10 good cards and 100 terrible cards, so I'm looking to balance it.  Buffing the weak, nerfing the overpowered.

• Tri-Horned Dragon - This card can attack up to 3 three times.  Your opponent takes 0 life point damage while this card is face-up.
• Flame Swordsman - Is a LV4 Normal Monster - instead of a LV5 Fusion
• Gaia the Fierce Knight - Is a LV6 monster instead of a LV7 monster.
• Legendary Sword (& other equips) - Boosts ATK by 600 instead of 300
• Dragon Capture Jar - Additional effect: During your turn, you can send this face-up card to destroy 1 Dragon-type monster on the field.
• Dark Hole - The battle damage you inflict this turn is halved.
• Raigeki - You cannot attack directly during the turn you use this card.
• Polymerization - Draw 1 card after the Fusion Monster is successfully summoned.
• Two-Pronged Attack - You only have to tribute 1 monster instead of 2.
• Reaper of the Cards - Is a LV4 monster instead of a LV5 monster
• Goblin's Secret Remedy - Once per turn, during your Standby Phase, you can add this card from your graveyard to your hand.
• Final Flame - Once per turn, during your Standby Phase, you can add this card from your graveyard to your hand.
• Armed Ninja - Effect becomes: You can destroy 1 Spell or Trap card on the field.
• Hane-Hane - Can return up to 2 monsters - not just 1.
• Misairuzame -  Is a LV4 monster instead of a LV5 monster
• Succubus Knight -  Is a LV4 monster instead of a LV5 monster
• Monster Reborn - You cannot attack directly during the turn you activate this card
• Pot of Greed - You cannot conduct your Battle Phase during the same turn you activate this card.
• Gaia the Dragon Champion - Once per turn, it cannot be destroyed by card effects.