I’ve been playing my Cryo/Chrono/Sage2 a little bit recently since she’d been benchwarming from before the R9 update.
I will say, with that build, you will not feel strong. Unless you invest a LOT in your weapon, your damage will feel pretty lackluster in anything other than straight map-clearing. Even with the Sage 2 attributes, you will just feel like you aren’t contributing much DPS compared to the rest of your party.
That being said, the build is still good for the reasons it was good back in the R7 days. It works phenomenally well as a support, and the addition of Missile Hole and Dimension Compression from Sage makes it even better. I never ended up testing the Enchanter support variant, but even though I felt my DPS was lacking a little (using 50 CON/Rest INT and a +10 Bertas Pevordimas Staff), it was incredibly satisfying to play in Challenge Modes and Dungeons.
TL;DR don’t expect to do a ton of damage solo as a Sage unless you have super high trans or are a linker. Otherwise, Cryo3/Chrono3/Sage2 still feels like a very viable support/semi-dps build.