melee ignite single target help

hi
can somebody help me figure out single target for melee ignite chieftain...
im fresh out of ideas
the build has good clear and its fun but the single target is lacking big time.
heavily carried by chieftain explosions
i tried triple curse with anathema. tried hateful acuser. fire trap. fire trap of blasting but nothing is good enough. just dont have enough damage
currently im running flamewood totems fourlink - also bad.
thanx
ps i cant afford to use archdemon crown

nobody?