Rageblade on shyvana any good.

Im a long time shyvana main. I've played her since Some first started playing league. So rageblade has been appearing on shyvana in Korea. I've been here since preseason 5. Rageblade was originally good on paper but in reality, the reason I originally thought it was good was because the sated devour phantom prick combined with the on hit with shyvana. Shyvana uses mostly aa's and her abilities make them do more damage. Her q deals bonus damage and double procs on hit effects. He's a gives her extra on hit damage which scales with ad and ap. it also gives her a fire ring that damages enemies in an air and increases move speed. The e is a skillshot that adds 2.5% on hit damage. The problem with stacking rageblade is the stacks are on attack. She also builds boodrazor. This wouldn't be an issue if they didn't remove sated devour which made shyvana pretty broken but it also made Yi broken who now uses rageblade. I tried the recently and did pretty good. Building it makes the game a bumpy ride until you start building tank. I rushed hotel the guinsoos then proceeded to get Titanic Hydra and DMP. I sold boots for a zeal into a PD (never got to PD). It gives 5% ms. My score was 18/9/9. Nobody could duel me and im not sure if they could even 2v1 me. The problem with rageblade is the build path and it takes time to ramp up. Keep in mind I run exhaust instead of flash. So is it good on shyvana or should I stick with frozen mallet.