The most obvious option, by far, is using the Fling spell to instantly eliminate any defending opponent by throwing it right at their face
Rounding out the deck are a couple copies of Brimaz, King of Oreskos and Kutzils Flanker
Cursecatcher has now been utterly outclassed by Judge's Familiar which is easier to cast and a far more useful body
And yes, a lot of the entries in this list have been printed in the last two years, showing whites recent power creep
With Abyss Proxy Shop, you can play with Saw in Half and every legendary Commander staple you need all without spending a fortune
Make that potentially repeatable via Commanders like Abaddon the Despoiler, Yidris, Maelstrom Wielder, Maelstrom Wanderer, Averna, the Chaos Bloom, or even The First Sliver, and fireworks are sure to ensue