You really have to define the purpose of a deck before asking for help. LS/AM is one of the best unupped FG decks as seen here:
http://elementscommunity.org/forum/index.php/topic,15426If for PvP, it changes a lot. You'll want want cheap, effective cards like Vamp Stiletto, good defense like Dusk Mantle, utility cards like Steals (2 is usually enough), and some offense in case the LS/AM tactic isn't enough (likely Abominations since you're
heavy at this point). I'll be honest though; it's not a very good PvP concept. It's easier to skip the LS part and pack Purple Dragons or Aboms.
Or, if you wanna mix it up, make a domination-bow with Novas, Fog Shield, Lycan, Forest Spirit, Arsenic, Graboid, LS, Darkness Pends, AM and Entropy mark. Can be pretty fun, and highly customisable. You can basically throw in anything cheap.