This is my Tier 1 Legacy deck that I went 6-1 with.
For some reason nobody in legacy decks is playing this great ability called banding. Banding allows you to attack and block with multiple creatures as if it were one creature. 
I will now explain all the key cards in this creature heavy deck:
Desert
 is to slow down the blockers while 
Camel
 is to prevent our own opponents 
Desert
s
Juju Bubble
 is our lifegain
Rakalite
 for preventing damage
Tolaria
 is used to deal with our opponents creatures with banding
Kjeldoran Knight
, 
Mesa Pegasus
, 
Mishra's War Machine
, 
Noble Elephant
, 
Pikemen
, 
Shield Bearer
,  
Volunteer Reserves
, 
Wall of Shields
 and 
War Elephant
 are our banders
Mishra's War Machine
 is our big finisher
This is a really fun deck that can combo off quickly if you play your hand right so watch out if you don't like combo! A really good thing about this deck is wastland doesn't work against this deck at all. 
I don't really have to talk about synergy because all the creatures have banding so its automatically really good. 
I really recommend you trying out this deck because of how much fun it is and how often it wins. If you don't believe me, Playtest it!