Oh I meant a heals when injured magneto. Saw that once and noped out of there.
First time I got to daily magneto was lvl 24. I promptly died in two hits. 4 levels later it takes 4 hits to kill me, makes a huge difference. I don't know how a non-ranged is supposed to beat him. I think you can group up for the solo dailies anyways? I've figured out how to beat him with no deaths on black widow. It involves nothing but rolls and basic attacks. :/ That's most bosses though. Sometimes you got to zone out and heal up, especially if he's going to trap you over by the entrance with his force field. Some people recommend pinning him in the corner with a character that can block, like thing, while others range attack him down. I've never tried it though.
Magneto was way easy in beta. i don't think I died on him in then. Definitely join a group for the storyline version. I feel like taskmaster and hood moved a lot faster in beta. Hood especially was tiring as a melee. Taskmaster's damage was definitely toned down. They nerfed bullseye and kingpin too. I don't think bullseye instant-kills anymore and kingpin used to spawn non stop adds. Now its like 3 goons every so often.