Sargeras, The Dark Titan

Trample.
Lord of the Burning Legion — At the beginning of
your combat phase, each opponent chooses Serve
or Demise. For each opponent who chose Serve,
take control of target creature that opponent
controls with the highest power until the end of
the turn, it is tapped and attacking, remove
Sargeras from combat. For each opponent who
chose Demise, that player sacrifices a permanent
they control, discards a card and mills 1.