I'm new to this forum and to modern, so please excuse any mistakes. I am trying to break into the format, and i really like the idea of affinity. It might not be the "best" deck, but i think the version i have come up with may be good? Thanks for any feedback, and if someone can instruct me on how to post a decklist, that'd be great. Thanks!
Land: 18
4 darksteel citadel
14 island
Artifacts: 12
4 cranial plating
4 springleaf drum
4 welding jar
Creatures: 23
2 etched champion
2 master of etherium
4 memnite
4 ornithopter
4 signal pest
3 steel overseer
Enchantments: 3
3 ensoul artifact
Sorceries: 4
4 thoughtcast
Modern:
Grixis Shadow
Burn
Titanshift
Copycat (Given up currently, not entirely sure what it needs)
Legacy:
Burn
B/R Reanimator (slowly building
EDH:
Sedris Control/Reanimation