I'm going to fix up all your cards because I think you are a good faker. Your wording's a bit off, but that's all right since I'm going to tell you how it should be. I'll also share with you how you can make them better (as far as gameplay goes):
Jean Chrétien ex
Incoherency is a power, and should be worded as such:
"Once during your turn
(before your attack), you may flip a coin. If heads, Jean Chrétien ex does 50 more damage to the Defending Pokémon until the end of your next turn. If tails, your turn ends. This power can't be used if Jean Chrétien ex is affected by a Special Condition."
Words in italics are never bolded.
Both of Jean Chrétien ex's attacks cause damage, and the power is self-referencing, and he's a Basic (no lower form attacks to copy), so the bit about +50 to attacks that have no damage is irrelevant; I removed it. Also, your turn ends when you attack anyway, so having your turn end when you attack and use the power is not only pointless, it removes the downside from using the power. And while we're still on the subject of the power, adding +50 to either of his attacks is very, VERY broken. I suggest getting rid of it altogether. That leaves the card very bland, so in its place you should craft another power. Look at real cards for wording tips.
Moving on to the HP, 180 on any Basic is extremely broken, even for a Basic -ex. Cut it down to 120 at the most. As far as the attacks go, Hyper Voice is a little overpowered. Illumination is okay. I'm not sure why he's weak to Metal and Fighting, so I won't get into that... and since Jean Chrétien ex is so powerful already, I suggest increasing the Retreat Cost to at least two, probably three.
Paul Martin *
The correct wording for Spiral Shrinkage can be taken directly from
Mr. Stone's Project, with proper word substitutes.
Defeated is broken. Wait until they have one Prize remaining, then use the attack and have your opponent discard their entire deck. There's no way to make this attack fair; get rid of it.
Everything else looks good.
Magikarp
Um... at least it's worded correctly. I wouldn't use it.
MetalGreymon
Defend is a little strong. You can't just substitute things for damage. No card pays two for 50 with no drawback. Forty damage is plenty fine.
Mega Claw is horribly broken. The ability to give 60 damage to anyone you want is extremely powerful, and having it only cost two Energy is unfair. Look at the other cards that can snipe. Kyogre ex CG does it for 70, but you need to discard 2 Energy. The attack costs 3 Energy. Steelix ex does it for 100, but you need to discard two of four required Energy. These beasts have drawbacks not to mention -ex status, two traits MetalGreymon doesn't have. The last sentence should instead read "
(Don't apply Weakness and Resistance for Benched Pokémon.)" Otherwise, they get applied, and now you'll be sniping things for 120 that have Fire or Metal weak.
And never,
never auto-paralyze. Multi Technical Machine 01 can get away with it because it's a one-shot thing. Use it, discard it, done.
Giga Blaster can be copied verbatim from
Salamence ex DF's Dual Stream attack. Substitute the appropriate damage figures.
No Weakness and two Resistances is hardly fair... but I don't know anything about Digimon.
It's broken. Too broken. Leave Digimon out of the PTCG.
