Talk:Path Of The Assassin/@comment-188.250.86.95-20130108194757

Attack him with your red combo first. At the maximum granades (10). It will take out almost half his energy.

Then use the yellow one. If you get out of Rain of Pain, start robbing like there's no tomorrow and re attack him with the yellow combo. Repeat this step as many times as needed. Take your time as the 8 hours should be more than enough.

And don't waste your time on icing, trying to get grenades. Their drop rate is just too low.

Do this right and you won't need to spend any reward points whatsoever.