I keep getting other worldly being and other small time crap from my slayer master
I their a better way to kill these things with magic?
I'm using fire blast

should I end my streak when this crap comes up and go to the guy in burntrope to change task?

Nah, not worth your points for your streak.
Some tasks are annoying, just skip them..

this is what i was thinking, would take too long to melee these things and It would cost like 160k to kill them with magic

160k isnt much considering the long run.
Cash is relative. It will come and go.
You can make that back in 20 minutes pretty easily.

I'd suggest dont worry much about money, get your skills high enough so you dont have to worry about it.

For example, once you hit 75 slayer, you will have 5 or so tasks that will make you 2m+ per task.
Or you can grind out DS2 requierments and do vorkath for 2m+ per hour.

Do things efficiently (as long as you're having fun) and find a money maker you think you'll be happy grinding for a bit.

Is this ironman

Did you talk to oziach

Easy task my dude.

Throw down a cannon and get yourself the auto spray from slayer rewards shop. Task is like 3 minutes.