BigBang, The Losers

Haste, Oversee 3(You may look at the top card 3
of you library)
when BigBang, The Losers enter the battlefield it
becomes Day
as long as it is day BigBang, The Losers gets +1/+1
and Flying
whenever you Surveil, target dragon you control
gains unblockable. sacrifice it on your end step.
{u}{b}{r}-Surveil 1
{u}{b}{r}-Stomp 3 (You may put the top
3 cards of your library to the bottom)