I'm learning that Warriors w/ Splinter Racks are a serious contender, fragile as they are. It's crazy how much damage they can inflict, and your batrep shows it nicely. I managed to inflict similar amounts of casualties on my friend's DA, posted a batrep earlier today.
I'm thinking of trying a list closer to yours, mixing in coven units.
So far I've found watching games like yours are the best way to learn to play aside from actually playing. I'm learning lots about good and bad matchups of units, like when your Talos got rushed at the back, or how you got all up in his business.
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I dedicate these deaths to Odin Allfather, Spearshaker, One Eye.
Fleet Shadowmaker - Kabal of the Dying Sun; Cult of Marrow Excised; Coven of Lambent Hunger
Sons of the Last Breath - Chaos Space Marines
Host of Shattered Purity - Chaos Daemons