This strategy sounds like it would definitely work for a T1 run. Combining ring of arcana with camouflage and rogue abilities is quite ingenious. Getting all the pieces does require a good amount of luck, though (I like to go with the roll of the dice and don’t often play known seeds).
One question, isn’t this a bit slow and repetitive to play? Having to wait nine rounds per enemy sounds like a lot of waiting.
Blazing is super powerful, but I tend to avoid it (unless I also get brimstone) because (1) my hero always ends up burning at least 2-3 times per game, always at the worst times, and (2) fire reduces dew drop opportunities and burns scrolls that you haven’t picked up. This is also why I tend to about the wand of fireblast. Maybe I’m doing it wrong, though!