A must for any elf deck. This card is cheap, is good for defense and will get you more mana. It is most useful to get in the beginning of the game since it offers you quite a few options. Since elfs work off each other, it is useful even towards the end as well though the tap to get mana will most likely be useless.
llanowar elves help get a strong start and of course add to your elf numbers for cheap.
Strategies and game play:
get it out quickly so you can block, attack or increase mana generation.
Combos with other cards:
use with other elves to combo for mana generation, get more life or increase power/toughness.
good for defense
weak base attack and defense
8 out of 10