idk how he got all this big amount of time
This was easy in 1.23b and some versions before. I made guide in forum with few pictures for that.
Any Hero capable of killing Death can reduce Michael's DPS with Truth + Glaive.
After that Trained Horses with some items can tank Michael forever at fountain.
Grats for soloing Laika!
Edit: perhaps you can get few seconds vs Sheep if you get Merlini or with Holy armor effect.