Muka Muka and Enraged Muka muka

Muka Muka is a level 2 monster that the attack and defense will increase 300 points for each cards in your hand, and its "upper level" Enraged Muka Muka is a level 5 monster with attack point only 1200 but it will increase 400 points for each cards in your hand. And luckily these cards are very easy to summon using not only one but several cards.

Either Muka Muka or Enraged Muka Muka can be easily put directly in the battle field or in your hand using Sangan, Witch of Black Forest, Last Will, Giant Rat and Chaos-End Master.
You can also make them stronger using Infinite Cards, and in addition, you can use Heart of the Underdog and make a deck that consisting a number of normal monsters, this will make you easily draw cards. Giving Muka Muka and Enraged Muka Muka a booster power in Attack and Defense.
If you worry if your hand empty, Morphing Jar will help you drawing 5 cards in an instant and giving Muka Muka 1500 point and Enraged Muka Muka 2000 (this make Enraged Muka Muka Attack Power become 3200).
Don't forget to put some magic card that able to draw card more, such as Pot of Greed.