Tried Maelstrom today with my MagickaBlade on XB1.

The first three rounds are fairly normal I'd say, not really hard, the fourth gave me a bit of trouble but I did it in the end.
I was fairly confident after getting halfway trought and losing only 10 lives.

Then the fifth round came.. the amount of damage is too high for my poor little girl, I can't swap to DW from my resto because if I drop Healing Ward, I'm dead and if I don't well.. I'm too slow killing ranged enemies that hit me for 7K each.
I spend too much time healing myself btw, so I can't really concentrate on the enemies.

I tried a lot of times and after something like 40 deaths, I quitted.

I have 217 CP's, running around with V15 Julianos and V16 Engine Guardian, Torug's Sword and Willpower Jewelry all purple.
My Magicka is over 40K, 17K Health and 9K Stam (after eating blue) and I have 2500 Spell Damage and 1200 Magicka Recovery unbuffed.
This is basically the usual set up I DPS vet WGT\vet DSA with, I only swapped the Destro Staff for the Resto, changed Molag Kena for the Engine Guardian and changed skills.

Tried everything I could think of, using barrier, meteoring adds down ect.
Can't get it done.

Can somebody give me some advice?
Many thanks.