Breaking UB

Sorcery
Target player puts the top eight cards of his or her library into his or her graveyard.
&
Entering 4BR

Sorcery
Put a creature card from a graveyard onto the battlefield under your control. It gains haste until end of turn.

Fuse (You may cast one or both halves of this card from your hand.)



Entering doesn’t target any creature card. You choose which card you’re putting onto the battlefield as Entering resolves. You can choose any creature card in a graveyard at that time, including one put into a graveyard because of Breaking.