I'd post my old idea but without certain abilities that have been cut it doesn't function the way it should. That being said, For Deep Meditation any proc based idea is a bad one. RNG doesn't fix the chakra issue since even at a 99% chance there's a 1% chance you could never get a chakra from it. Which is why a 100% chance of building chakra on a GL3 reapplication (performing a form 3 weaponskill with GL3 up) is the most balanced way of working. There's not a wasted chakra point that is constantly there from having TFC up at any point without using it, like now with the proc based system.

As for the Riddles. Earth works on activation and Fire is just a 10% damage increase with a pyretic effect or something that doesn't hinder actually playing the job.