It's honestly quicker to do this by your own.
You could just take (and edit) the effects from already existing items/cards.
i.e 1:
bonus bDex,6; bonus2 bSubRace,RC_Undead,10; bonus2 bAddEffWhenHit,Eff_Stone,500; bonus bDef,2;
These effects can be found on the following cards: Zerom Card, Teddy Bear Card, Pest Card, Cornutus Card
You should try the second one by your own, it's really not that hard.