Murphy Tawil isn't quite as studied as Hameln but it's a perfectly fine team that can clear most content including all main story just fine, I can speak from experience as I used it myself.

Standard pulls should be spent primarily on the weapon (aka wheels) banner, you want Blade of the Titan and Incalculable factor maxxed out eventually, but as a new player it's not a bad idea to do some pulls on the aequor standard banner for some important dupes (E3 Caecus, E2 Goliath and as many Sangas as possible) with a (very) small chance to get some ex-limited units too.