Winota: Removing the worst/most narrow storm card to help buff Boros a smidge. Gives a reason to play aggressive Boros over just White or just Red. Red provides more non-human attackers, white provides more human hits. You don't need to be cheating Agent of Treachery into play for this to kill incredibly quick.
Maul of the Skyclaves: This turns all of white weenies 1-drops into hard hitting threats. Plays like a better version of Silverblade Paladin that's not removal-soft. Brightling has just been bad, that's all there is to say.
Shatterskull: Mizzium is the worst red removal, as it can't go upstairs. So I'm adding a slight restriction, that opens up a lot of possibility.