Dr. Strange also had Hannibal fighting Sherlock. They had similar powers.

The ending didn't make any fucking sense with Dormamu anyway. Dormamu should not have suddenly realized that "wait a minute", because he would've never remembered the last times he speared Strange. Also the warning about using timeshit too much... well nothing happened when Strange used it for 5 billion times with Dormamu. Fuck that movie was stupid in every way.