Hey,
Fire Sabouter is just not a good idea in general. Fire is not a strong element for melee and is especially lacking when only supported by resist reduction from one mastery (8% RR on that amulet does not count). You don’t have enough damage to leech properly and you don’t have enough defenses (and yes, cc-res) to withstand the onslaught.
But, good news for you, I have designed a green free melee Sabouter spec that is an absolute BEAST. It never dies in Crucible Gladiator 150-170 and is able to farm it as fast as 6:30 minutes. It also can farm Shards 75-76 quite reliably for a melee spec.
Here is the link. Just give it a try and you will never go to your old Sabouter ever again 