I think taken on average, the Bant Brokers cards are probably the strongest and most consistently good of any of the cycles
Once transformed into Tovolar, the Midnight Scourge, Tovolar grows from a 3/3 to a 4/4 and gains the ability to let its controller pay additional mana to raise the power of werewolves, providing them with trample.
Kenrith mainly sees play in Commander as a generic five-colored Commander that can do a little of everything, but Kenrith, Returned King also sees some limited competitive play
8 Kinsbaile Cavalier Speaking of giving other creatures double strike, Kinsbaile Cavalier accomplishes the same effect assuming your deck is full of Knights
It only lasts until you upkeep as mentioned, but then you get an unblockable creature
Either way, these changes are far from incidental