I decided to go full attack on both. Even I know Gretel SS is useful for her mana control, my *5 yellow options are really limited (not been lucky on pulls or TC20) so her attack stat of 814 has been useful on Titans & Raids. Besides, my priority is Titans and I am an attack focused player
Node 19 gives +17 on defense 40 emblems cost, and node 20 +42 on health 70 emblems cost… So seems a high cost/benefit for me… But would like to hear some thoughts about this… Thx for your help…