Boon of the White Whale

When Boon of the White Whale enters the battlefield, lands you control gain haste until end
of turn.
{ut}: Put an exalted counter on Boon of the White
Whale.
As long as Boon of the White Whale has one or
more exalted counters on it, at the beginning of
your upkeep, if you have already had an upkeep
step this turn, you win the game.