A very strong card that can give you some control over your opponent's action. You need a high level monster to use this, which can be a problem unless you can special summon them easily through cards like Kaibaman.
This card has the ability to keep destroying your opponent's spell/trap card as long as it survives the attack. Its main problem is the low attack and defense, but it can definitely be put to really good use if you have some support cards.
50/50 chance to destroy all monster your opponent controls, it can turn the duel around if you can guess it right. It's best used with Joey's skill Luck on Your Side to get a 100% chance of calling the coin toss right.
A more controlled healing card that has high heal value or damage. As long as your LP is lower, it can be used to recover 2000 LP, but it's also useful to lower your LP if yours is higher so you can get low LP bonuses. Often for farming decks to manage your LP by increasing or lowering it.
Very high defense and easily summonable card due to its low level. It can make sure that you survive at least 1 attack if you set it down, but it has a weakness of 0 attack, if switched to attack position, you will surely take a lot of damage.
This card makes it more easier to farm most LDs since you can use it in most farm decks, as long as it has high attack monsters and Gravekeeper's Vassal for high damage bonus, as well as effect damage only bonus.
Moses you are just as asleep as the Anonymous who said there is a mistake just read what the guy above you wrote before just writing. This is not about leveling up but dueling LD and the rewards they give :P
I bet hands down my luck is worse. I farmed the crap out of kaiba (easily 2000 white keys) and got practically nothing! No super rares besides familiar knight and that was all done during bonus point campaigns!