how do i play spellsteal

currently using this
https://wynnbuilder.github.io/#4_07R0RZ0Jh0Aw0TQ0K00OJ0og05n0P0t1h1s001g000010066O
WynnBuilder build:
> Cancer֎
> Medeis
> Cinderchain
> Curador Boots
> Draoi Fair
> Intensity
> Diamond Hydro Bracelet
> Tenuto
> Black [f6t6f6]

and finding it tough to do li/other bosses, could someone walk me through the basics of spell assassin

yea i get that i need to pull off some weird combo while combining melee hits and vanishes for maxium dps but it just seems so hard.

thanks

edit: also how much dps could i be getting with this particular build if i was performing everything perfectly?

 

smoke bomb every 5 seconds
optimal gameplay you would be vanishing every 3 seconds but usually you're vanishing every 5
do spin spin multihit melee vanish or spin spin spin multihit melee vanish

with optimal gameplay and courage you'll be getting 50k dps average? I'm no expert on spellsteal so take this post with a grain of salt

 

Bumper cars