Starburst Node - How to get past these quests with ease?

Intensity108

I need to finish off the Act 4 Exploration but 4.3.1 is stopping me?
What is the best way around the Starburst node?

Kill_Grey

Gulk, ghost with hood synergy, awakened CMM, awakened corvus, Awakened Nick in first life. Or a strong Regen champ like blade.

winterthur

Or a hard hitter and get the kill quick.

Vendemiaire

This is the one quest in my Act 4 Exploration where I used pots because there's no really workaround but to hit really hard. My technique was to save up for an SP3 and use it when the opponent is below 35% for the kill.