Blackheart vs. Darkseid

NO prep time.

Neutral Battlefield.

TO the KO, BFR, or Death!

BATTLE!!

http://www.comicvine.com/forums/battles/7/blackheart-vs-darkseid/757157/#1

The Almighty Darkseid.

What are Blackhearts' feats? Is he Thanos level, or above. Because he definitely needs to be above to have a good chance of winning.