Evade SB and solo.
The thing with spires, and it has been like this since the introduction:
Just move as close as possible to the wall where the spire is. all the monsters will spawn inside the ring and you will make every single spire in 1-3 seconds.
with the new boons you make like 20-25 per spire in 3 seconds or less.
so i dont see any problem with it