RAINBOWS OR DRAGS?

I just need to know which one is better to use to lvl a tro from 110-130 so i can make a tro-war-arch combo.

so should i use full rainbows to lvl my tro or use full drags to lvl it?

rains to lvl

i would put 80% rainbows 20% dragongem to hit target harder you also get more exp if u have both.

Full rains is better.

thx all :)