Summonning of Boldskwartzc

Flashback- {s}{s}{s}{s}{s}{s}{s}{s}{s}{s}{c}{c}{c}{c}{c}{c}{c}{c}{c}{c}{p/c}{p/c}{p/c}{p/c}{p/c}{p/c}{p/c}{p/c}{p/c}{p/c}
All cards other than this card, in all zones that
you control other than your hand phases out,
then you get an emblem with: skip your upkeep.
And create Boldskwartzc, Dooming Beast, a 0/1
colorless legendary creature with haste,
trample, indestructible, deathtouch, poison10
and: at the beginning of your next main phase sacrifice this creature.
Put a copy of lure on it