Getting Life cards out first doesn't help yer speed, so switch to Life mark and adjust quanta from there with Stone Pillars and pendulums. You won't need more than 6-8 pends. After that, you may or may not have noticed that 8 attack gives the biggest bonus with Adren. In addition, Hematites and Steel Golems are a bad fit in this equation. Unupped Shriekers and Stone Dragons both have 8 attack though, and the latter gives you the CC resistance that Shriekers lack if you're going for speed+durability.
Gemfinders are a plus, but the Rider doesn't help. And yes, as a rush you'll want more quanta, which is fixable once you've dropped the Golems and Rider.