First off I really like the mix of ideas. It's a little weird calling it a Ranger though when it's primarily melee.

The Concealment mechanic looks fun but is that too similar to Ninja?

The persistent ground effects seem to be a core aspect of this job and with a 70% uptime (if I'm reading that right) I feel like it would be an endless source of frustration for the player with how much enemies move around. It could also mess with positionals.

I can't really tell how the Land's Wrath abilities are supposed to work, do you just hit each one in succession then follow up with Land's Fury? Or are they all in one button that changes based on Terrain? And they're all the same except one?

All the Terrain-related abilities seem a little too similar (for my liking anyway). Might be for the best to keep things simple but imo abilities like Stormcaller and Cold Snap are more fun than Overgrowth and Magmatic Blade. It looks like you want to use them all anyway so that might not matter - unless Land's Fury had a different effect based on the Terrains used (based on whichever was used most with a 5th option if they're equal).

Also what's the deal with Vital Shot / Last Breath and Exploding Bolt sharing recast timers? They have very different recast times.