Michael, Timed End

When Michael, Timed End enters the battlefield, put 8 time counters on him. On your upkeep, remove a time counter from Michael. When the counters reach 0, you win the game. If a player does 12 total damage
to you in one turn, remove 2 time counters.
{t},{r/g}{r/g}: Target creature gets +3+3 until
end of turn.