I suck at Magneto :( need tips.

Trying to get better at Magneto, but struggling to play him well. Usually I play Dr. Strange but some matches with cracked Wolverines are making me consider learning Magneto, especially since most of my matches has me solo tanking. Currently practicing on QP so the only replays I have are QP matches. Some issues I'm noticing is just me not landing shots well (ult included) or not reacting to ults in time with the shield.

Replay ID: 3011963298