Golden Sun: The Broken Seal

[Professor Tetsu]

I've made 35 cards (minus all the images) for this pack, but I'll just share a few. You'll see 4 cards. Please bear with me here. Tell me what you think!

Venus Adept - Isaac
EARTH
Level 4
Warrior/Effect
Effect: If your opponent has at least one monster on their side of the field and you have none, you may Special Summon this card from your hand to your side of the field in face-up Attack Position. This monster may not attack during the turn that this effect was used. Once per turn, you may pay 500 Life Points to Special Summon any Level 4 or lower monster with "Adept" in its name from your hand. That monster may not attack during the turn that this effect was used. Once per turn during your opponent's Battle Phase while "Vale" is face-up on the field, you may halve this monster's ATK until the end of the Battle Phase. If you do so, this monster cannot be destroyed until the end of the Battle Phase during which this effect was used. (Battle calculation is applied normally.)
ATK: 1400
DEF: 1200


Mars Adept - Garet
FIRE
Level 4
Warrior/Effect
Effect: Once per turn, if this is the only monster on your side of the field, you may double the ATK of this card until the End Phase. You cannot Summon or Set (including Special Summon) during the turn that this effect was used. Once per turn, you may pay 500 Life Points to increase the ATK and DEF of one monster with "Adept" on your side of the field by 200 points until the End Phase of the turn that this effect was used. Once per turn, during your opponent's Battle Phase while "Vale" is face-up on the field, you may halve the ATK of this card until the end of the Battle Phase to negate the attack of one monster.
ATK: 1500
DEF: 1100


Jupiter Adept - Ivan
WIND
Level 4
Spellcaster/Effect
Effect: If this card is the only monster in your hand, you may pay 500 Life Points to Special Summon it to the field in face-up Attack Position. Once per turn, you may discard one Spell card from your hand to destroy one Spell or Trap card on your opponent's side of the field. You may pay 500 Life Points to look at your opponent's face-down Spell and Trap cards. If this card is destroyed as a result of battle, you may search your deck for one monster Level 4 or lower with "Adept" in its name and add it to your hand. Your deck is then shuffled.
ATK: 1100
DEF: 1200


Mercury Adept - Mia
WATER
Level 4
Fairy/Effect
Effect: Once per turn, you may discard one card from your hand to increase your Life Points by 1000 points. While this card is face-up on the field, increase the DEF of all face-up monsters with "Adept" in their name by 300 points. If this card is destroyed as a result of battle, you may discard three cards from your hand to take no battle damage this turn. Once per turn, you may halve the ATK and DEF of this card until the End Phase of the turn that this effect was used. All monsters with "Adept" in their name are unaffected by any Spells or Traps until the End Phase of your opponent's next turn.
ATK: 1000
DEF: 1000


So, what do you think?

[Tentacruel]

Pretty creative effects, but the discard effects are way underpowered for the current meta-game, especially Garet's.

[Professor Tetsu]

Hm. Thanks! So, I'll take the discard off Garet, but are the others okay? Nice 'n balenced?