Ragnar is healing Odin

[Yup]

Yup.. and sometimes the only way you know he's healing is to watch the HP% number... 7.2%, then 8.4% then 7.5% then 6.8% then 9.3%... etc... No green numbers anywhere.. and I have yet to use Ragnar against him. For me the invisi-heal typically happens when he's down to last 15% of HP. Or that could be that I only notice it then because I'm watching the %.

[Nicko]

I’ve seen it too. Just like Yup said - I keep an eye on the percentage - and it goes up instead of down 2 out of 3 hits. I’ve stopped using him against Odin.

I’ve noticed a similar pattern with Deadalus...