Construant paradox

As construant paradox enters the battlefield choose
one target creature to exile one to tap and
another to its owners graveyard
{t}Choose five differant mana
{ut} Untap all land permanents you control and all
your other permanents turn into a 10/10
creature with haste until end of turn. Haste
Indestructible trample flying protection from
colored spells this card can’t be exiled