Slappy Green

A simple, creature-based deck designed to produce
a horde of small, fast creatures to overrun your opponent...
Giant Growth, Rancor, Seal of Strenth, and Stampede Driver 
can give you the added oomph you'll need to vanquish those 
ritzy all-rare decks your friends play.

Construction:
Creatures

4 Wild Dogs (Common - Urza's Saga)
4 Pouncing Jaguar (Common - Urza's Saga)
4 Scryb Sprites (Common - 4th Edition)
2 Elvish Lyrist (Common - Urza's Saga)
4 Llanowar Elves (Common - 6th Edition)
4 Taunting Elf (Common - Urza's Destiny)
2 Acridian (Common - Urza's Saga)
2 Stampede Driver (Uncommon - Nemesis)

Spells

4 Giant Growth (Common - 4th Edition)
4 Rancor (Common - Urza's Legacy)
4 Seal of Strength (Common - Nemesis)
2 Spidersilk Armor (Common - Mercadian Masques)

Land

20 Forest