I already have these cards:
2* GranVista HawkinsNoel Spysee Trey Tula
3* Andsom Cyan Deadeye Ector Greesh Taljion Tyd
(pretty poor for 4* and 5*)
and I now have 3~4k to buy one or two more cards
how can i build up my DT deck?
Get Raeth and Selma?
He says he has 3-4k and you suggest Raeth and Selma ?
Personaly. I would say get rid of Sliman and use more 4stars, Scubb, Katan, Sting, or any of there 4stars truthfuly just preferably those.
Any recommended deck?
Some cards you should grab that are cheap and good are Kalder Coleridge Baba, get Scubb while hes cheap and Katan when you can.
a deck you can start with after getting the first 4 mentioned cards is Kalder Coleridge Baba Scubb kristen Ector Taljion ...then pick one of these 3 cards as your last card (Tyd Deadeye Andsom) i prefer Tyd but some like deadeye's damage matched with some pill manip like Scubb and pill eaters like Taljion while others love the threat of -3 opp pillz with Andsom
The compare between Kalder and Tula ?
Well in mono Tula can be just as effective i suppose, its more half decks you want to run Kalder over Tula because not having SOB can hurt Tula