I just want to say how much I HATE IT with all this ...bickering... about 
Farfetch'd and Scyther.  Farfetch'd can damage first turn, while Scyther has 
20 more HP, no retreat, is a GRASS POKEMON, and I want to talk about 
something that nobody has said about Scyther: I kills the common Chansey.  
Say, a Chansey uses scrunch, and flips heads.  Your Turn.  You have 1 grass 
and a DC on an active Scyther.  Swords Dance.  Oppenents turn.  Chancey uses 
scrunch.  Tails.  Your Turn.  Slash for 60 HP DAMAGE!!!  JUST AS IF YOU 
ATTACKED BEFORE, EXCEPT YOU DIDN'T HAVE THE CHANCE!!!  Farfetch'd couldn't do 
that.  This can work in most stall situations (I'm thinking Eevee and Ryhorn 
right now...).  Scyther just kills in a non-speed weenie deck, but Farfetch'd 
would be better than Scyther in one.  There ya' dux lovas.