Here are some things i found really helped with end drain/Toxic/minus rech,Stun;
1.The base buffs, they last an hour
2.Force of Nature/gaes of the kind
3.I had a Kin spam I.D.on me before the launch. I never got stunned.
4.Demonic/eye of magnus
5.Amplifiers,recovery serum from P2W
6.Dark Consumption
7.Inspirs (liberate,Back in the Fight: +100% Endurance)
8.Ageless
because this was an 8 man,I used all of these and a bunch of EOEs at some point in our raid.We cleared 3 blooms and then took hami down.We tried clearing one bloom and then taking him down the week before and came up 10-15% short.We played it safe this week.