Gravy Master

Ah, the first Card of the Day is Gravy Master. The artwork on this card is crappy at best. From the picture, one would assume that one of GM's hands has only 4 fingers while the other has 5 though there is this stubby thingy on the four-finger hand that may be considered a fifth finger. The stats of this card are excellent though. This monster's defense is 75 points higher than the defense of Big Shield Gardna and it doesn't have the crappy switch-into-attack-mode-after-being-attacked effect. It may have 0 attack, but as a defensive wall, it really doesn't need to have attack power anyway. The Fire/Aqua is also a fine touch. Looking at its effect, this monster gets even better. For the cost of 1000 LP, this monster could have up to 4500 ATK unless the Seal of Orichalcos is in play or something of the sort. With equip cards and swarming, this defender can become a formidable attacker. Playing GM is very easy also. It is a level 4 monster that's searchable by Sangan and UFO Turtle. This card is great in many decks but it would probably be best in a Fire/Burn deck.

Stupid Combo

Your opponent has one monster on the field and 2 cards in their hand (2 copies of Darkness Approaches). The monster is a Flower Wolf. Your Gravy Master is in attack mode with 0 ATK and Flower Wolf attacks it but you save your Gravy Master by activating Sakuretsu Armor. In their End Phase, you activate a face down Ojama Trio and a face down Scapegoat. During your turn, you sacrifice two Ojama Tokens to put Lava Golem onto their field. Then, you activate another face down Ojama Trio. Then you activate Gravy Master's effect bringing its attack to 4500. On top of that, you play United We Stand which would boost it to 8500. Then comes the Lightning Vortex after discarding Solar Flare Dragon for the cost. And finally, the 8500 direct attack.

Gravy Master can also be used with Ultimate Baseball Kid for some violence-ness. Gravy Master can be used in combination with a cornucopia of cards, but I'm too lazy to list all of them.

Artwork: -6.2/10
Stats: 7.4/10
Effect: 6.2/10
Ease of Use: 8.1/10

Gravy Master can help you defend until you have the cards you need, and it can also be used offensively. Using its effect, you give Gravy Master up to 4500 extra ATK points at the cost of a mere 1000 Life Points. However, these ATK points wear off after a turn, and paying 1000 many turns in a row can become a burden. However, you can get around the cost using healing cards (such as Solemn Wishes) or cost reduction cards (such as Half-Fare Metro Card), or not at all. Combining Gravy Master's strong DEF with Robbin' Goblin or Robbin' Zombie can also be annoying.
This monster, even with its alterations, is an exceptional card. It works well in defensive decks, monster-heavy decks, Last Turn decks, stalling decks (such as deck destruction), sacrificial decks, Ra/Garzett decks, Fire decks, and Aqua decks. Gravy Master would not be helpful in a tournament-level beatdown deck for several reasons:

Its offensive power requires many monsters on the field. This is not a likely situation in tournaments. Even using Scapegoat will only result in 2000 ATK. Using a Gemini Elf would require less cards to get the job done.
Beatdown decks are all about attacking. Defense is useless when your opponent's monsters all already being destroyed.
Its effect requires you to pay 1000 life points.

Artwork: 1/10 - The original card actually had no art.
Stats: 6/10 - It has an attack of 0 (but it can grow with its effect) and an extremely high defense without drawback. Good for many decks. However, no stats are perfect, and it can be overcome, though not easily. The stats alone only make it very useful in a deck that would defend.
Effect: 6/10 - It's effect is great, though it's only useful if your monsters can actually attack. Also, it costs 1000 life points. If this card had stats of 0/0, it would become a mediocre card and see much less play.
Ease of Use: 9/10 - It is the combination of the stats and the effect that makes this card useful. Defend until there are enough monsters, and then you can strike. Its effect only costs 1000 life points, so virtually no card advantage is lost. If you don't want to keep paying 1000 or the number of monsters has decreased, you can simply switch it back to defense mode. Quite guerrilla indeed. Powerful and deadly. Of course, if your life points are too low, your can't use the effect, but that doesn't make this card a useless vanilla deadweight topdeck either! You can still defend with it! Your opponent will definitely be annoyed by it, especially when they ram into it and have their life point number end in 25!