Successful Dino Rabbit Deck

Monsters:
Kabazauls x3
Sabersaurus x3
Effect veiler x2
Black luster soldier-envoy of the beginning
Jurrac guaiba x2
Jurrac velo x2
Rescue rabbit x3
Sangan
Tour guide from the underworld x3

Spells:
Book of moon
Dark hole
Enemy controller x2
Forbidde lance x2
Gold sarcophagus x2
Heavy storm
Mind control
Monster reborn
Mystical space typhoon x2

Traps:
Dimensional prison x2
Mirror force
Solemn judgment
Solemn warning x2
Starlight road x2
Torrential tribute

Extra deck:
Stardust dragon x2
Evolzar dolkka
Evolzar laggia x3
Leviair the sea dragon x2
Number 17: leviathan dragon x2
Number 39: utopia x3
Number C39: utopia ray x2

Overall, this deck lose very few and win many deck but i think it need improvement. So, if you have any suggestion, please reply.

take out 1 c39 or take them all out, put zenmaines in

Okay.

First of all there are few lights and dark monsters in the main deck for BLS to shine, but we'll keep iot since you intend to do so.

-1 Velo
+1 Guaiba

-2 E-Con
-1 Starlight Road
+1 Fiendish Chain
+1 Trap Dustshoot
+1 Pot of Avarice

-1 Stardust
-1 Utopia
-1 C39
-1 Leviathan
-1 Leviair
+1 Steelswarm Roach
+1 Dolkka
+1 Lavalval Chain
+1 Wind-Up Zenmaines
+1 Ally of Justice Catastor or Magical Android (for more BLS targets)

Side these cards (or main them depending on what you want) :

- Maxx 'C'
- Thunder King Rai-Oh!
- Neo-Spacian Grand Mole
- Smashing Ground
- Dimensional Fissure
- Bottomless Trap Hole

but sometimes dont know why BLS less come out during the duel so i should drop it or just add other card???

That's because you only have 2 LIGHT and 4 DARK monsters in the main deck which makes BLS inconsistent.

If you want to remove BLS replace it with Neo-Spacian Grand Mole since it can hurt synchros, XYZ & boss monsters.

tq for the suggestion. It really got improve this deck a lot XD. If got better suggestion than this, can come to reply. ^^