The first results of the Top 32 immediately saw two more sets join the ranks of the fallen:

Avacyn Restored

Avacyn’s archnemesis Griselbrand held on the longest, but fell today. He was also the last Demon left in the Bracket.

Urza’s Legacy

Mother of Runes was the last remaining card from Urza’s Legacy - and also the last of the 300+ Cleric creatures remaining in the Bracket.

You can track extinctions here.