Shroud Meteor should be faster to cast/not be interupted by taking damage/ have some survivability.

Shroud meteor is a costly high damage spell that could be great against groups of enemies.

However: the generally slower-moving or highly crowded enemies(fell and hollows) are immune (fel) or resistant (hollow) to shroud damage.

Creatures weak to shroud: wildlife+ scavengers + vuhka, are typically all very fast or leap attack or have consistent range attacks that are difficult to dodge when you can't roll and have your movement slowed doing a 5 second spell channel. Meaning, most situations where I find meteor COULD be useful; even with the high 2hour debuff cost; I am unable to cast it anyway as enemies constantly disrupt the channel.

While shroud meteor could be useful in these situations if you have a dedicated tank; a lot of the swarm based enemies that meteors AoE nature would be suited for (wolves, rats, spiders) also typically have lower HP. In my experience, the tank nearwell handles most of them before the cast has finished.

I suggest having shroud spells or shroud meteor specifically have immunity or resistance to having it's cast interrupted from damage. Could have thematic justification- embracing shroud is embracing self harm/less care of self preservation. Shroud dulls your senses to pain.

I feel this could be a fun risk/reward way for mages to handle low HP swarms of enemies; while still being glass; but letting the cannon actually fire.