1 force armlet, 2energy crystals, 3 dragon fangs, and 12 pulse ammos for the lionheart and shooting star. Also where can i get dark matter? What items do i need to get doomtrain and where can i get them (i have the solomon's ring)?
You can refine dark matter from 100 curse spikes.
malboros sometimes drop force armlets on the island closest to heaven (or hell, but there's more malboros in heaven)
energy crystals are dropped by elnoyles, which you can refine 10 elnoyle cards from (play the kids on the ragnarok, or walk around esthar hoping to encounter one)
I can't remember how to get dragon fangs xD Battle around the island closest to hell and you're bound to get somet hough.
pulse ammo can be refined from energy crystals.

Doomtrain requires 6 malboro tentacles, 6 remedy+s and 6 steel pipes. use alexander's med level up to get remedy+.