FNM

[Shanamave]

FNM 64 cards, 0 sideboard 1 {Mountain} 3 {Rugged Highlands} 3 {Forest} 2 {Nykthos, Shrine to Nyx} 2 {Forest} 2 {Mountain} 2 {Frontier Bivouac} 2 {Island} 3 {Thornwood Falls} 20 lands 4 {Voyaging Satyr} 4 {Sylvan Caryatid} 1 {Nylea, God of the Hunt} 4 {Elvish Mystic} 3 {Courser of Kruphix} 4 {Heroes' Bane} 2 {Rattleclaw Mystic} 2 {Polukranos, World Eater} 4 {Hornet Queen} 4 {Prophet of Kruphix} 2 {Polukranos, World Eater} 34 creatures 4 {Xenagos, the Reveler} 3 {Chariot of Victory} 2 {Prowler's Helm} 1 {Nissa, Worldwaker} 10 other spells Sideboard

[Shanamave]

Just started playing FNM and need advise on how to improve it other than dropping the cards over 60?

[Crossed]

-4 {prophets of kruphix}
Remove all the artifacts
+1 or 2 nykthos
Remove all blue producing lands and replace with 4 {temple of abandon}s and 4 {wooded foothill}s

[Crossed]

Oh yeah, and I suggest {crater's claw} and {genesis hydra} for more fun

[NovusOrbis]

Leave in {Prophet of Kruphix}. It's insanely powerful. Add {Karametra's Acolyte} and {Kiora's Follower} for mana out the wazoo.

[Renegade]

The main thing to figure out is what you're looking to do with this deck. By the looks of things you want to ramp into heavy threats but you are ramping into threats that are easily dealt with except for {Hornet Queen}.  The main decks in the format have answers to huge creatures. {Chain to the Rocks}, {Hero's Downfall}, {Abzan Charm}, {Murderous Cut}, {Elspeth, Sun's Champion} etc... so going all in on them may prove to be inconsistent.  If you want a devotion strategy you should just go with GR not RUG just because it is more consistent. {Prophet of Kruphix} is great but has a huge target on her face.

If I was to work on this list I would change a few things like (This is if you want to keep the RUG theme)
+3-4 {Savage Knuckleblades} (a very hard threat to get rid of, pumps, and can get haste)
+1-2 {Sarkhan, the Dragonspeaker} (very powerful card)
+2-3 {Stormbreath Dragon}  (evasion and protection)
+4 {Lightning Strike} (one of the best cards in standard)
+2-3 {Magma Jet} (the scry is very powerful)
+1-2 {Temur Charm} (great utility card)
+1-2 {Hornet Nest} (always Fun)

What I would shave first
-4 {Heroes' Bane}  (They don't do enough to justify the slot, Dragon is better)
-1 {Hornet Queen} (Unless you are reanimator you don't need 4 and 3 is pushing it)
-3 {Chariot of Victory} (Useless with all the removal in the format)
-2 {Prowler's Helm}  (Same reason as above)
-2 Nykthos, Shrine to Nyk} (I would rather have more consistent mana)
-4 {Voyaging Satyr} (Not great without Nykthos)
-1 {Xenagos, the Reveler} (3 is good enough)
-2 {Prophet of Kruphix} (I think 2 is a good number

Then the lands need to be changed for fetches, scrys, and pain lands.  ({Wooded Foothills}, {Yavimaya Coast}, {Temple of Epiphany}, {Shivan Reef}, {Temple of Abandon})