Just wondering how these two power would interact.
Indigo-1 has
White Tiger has
When I bring White Tiger back, would I heal her to click #2?

Also, would it work for Mr. Immortal?

Mr. Immortal shouldn't work, as he isn't on the map and Indigo-1 references being on the map. I'm betting it won't help for figures who are healed to specific click numbers either, as the healing does not use a number of clicks to be increased, but I could see it going the other way too.

I wonder if Indigo-1 would effect wild dial clicks like Jubilee to heal above their starting lines. Would she get 2 clicks of healing for using Steal Energy? Again, I could see saying yes because it is Steal Energy causing the healing and Indigo-1 "enhancing" it, but I could also see a rule against it, only allowing "normal" Steal Energy to heal above the start.

id say White Tiger goes to click 3. If Indigo said "heal that character 1 extra damage" then it would be to 2 but based on that wording id say shed increase healing but irrellevantly as you go to 3 (similar to how Indigo wont extra heal a character past a starting line)

Heal to click numbers do not specify a number of clicks, just where to go so I would rule that an increase in healing does not change the click number