Get yourself elemental armor. If your server does have everything slotted at [4]. then those will help a lot too. If you want to put in cards that help you resist, you can try Agriope(against poison), Bathory(shadow), Evil Druid(undead), Ghostring(ghost :p), Pasana(fire), Dokebi(wind), Sandman(earth), Swordfish(water).
To be honest, I'd choose 4 tao gunka's instead. Remember that it gives 100% off of your Base HP. Not modified.