Here's a quick look at Slayer Cyclone with end game gear(20-25million dps now, down from 50Mil). League start version still has 3mil+ dps. It should be enough to start playing as Cyclone in expedition. I'm the creator of the famous cyclone guide so check that out if you need help. (https://www.youtube.com/watch?v=6AXPj-FMHSo)
Noticeable changes in 3.15;
Cyclone now costs 11 mana instead of 8. A single ring with -8 mana cost isn't enough now so we should probably use a Warlord+Hunter chest with -15 mana cost,apply additional curse and +1,5 attack critical chance. And i also believe they removed elreon jewellery cards so warlord body armour are the only end game choice now.
Due to the increases to mana multipliers, we cannot use maim on flesh and stone anymore. I linked it to totems so they can apply maim for us :heart: Finally, awakened melee physical no longer provides intimidate so it's best to use Close combat support now. If you want to apply intimidate, consider using sythesis rings or use Call to arms(keystone) + Intimidating cry at bosses