Nakir, Lifemage

At the beginning of your combat step creatures
you control gain one of the following until the
end of turn: Trample, Haste, Flying, Vigilance, Firststrike, or Lifelink.
Sacrifice Nakir, Lifemage: Regenerate each
creature you control, they become indestructable
until the end of turn.
"We all have hidden potential, we just need the right
person to show us what it is."