2000 point list useful bios ?

[mawlocatemyhomework]

2 walking hive tyrants - twin devourer , heavy venom cannon
3 hive guard - impale
30 termagaunts - spinefist
10 termagaunts - devourer
3 tyranid warriors - deathspit, venom cannon, rending claws
3 tyranid warriors - deathspit, venom cannon, SC
1 carnifex - SC, CC, bioplasma
1 carnifex - 2SC, bioplasma
1 carnifex - twin devouer, hvy venom cannon,
2 trygon prime .

What biovore are useful for these guys staying in 2000 points I'm a new player and I wanna know what bios are a waste of points please help .

[mawlocatemyhomework]

Also the guys I play against use a bit of everything but I play a couple guys who play orks and space marines a lot . Also it's for fun not completion bit I still wanna win some games and get good advice .

[blackrainbow]

At 2000 points, two biovore broods of 1 each (2 each if your opponent has ranged weapons greater than 48") would be good. They really are great, especially for their point cost. Also, try slapping some eGrubs on one hive tyrant, and perhaps desiccator larvae on the other, and lastly, Adrenal Glands on the CC focused carnifex to help move that puppy across the table.