I love the RotS. It's an epic card to use through the lower leagues and in to silver. With everyone have a Lord Arianthus with reflect, the water splinter was my go to before magic became easy to defeat.
I haven't picked up any orb cards for months. I'm concentrating on using my DEC to improve summoners. Then hoping to use the higher levels to generate more DEC and buy ORBS.... Well that's the plan anyway.
Yup, I pretty much only use him with monster lose all abilities, they all have snipe. Too much void, silence, reflect to get much use. I still like water for double snipe and that electric eel. Water at the lower levels is usually an easy win.