This deck revolves around fast artifact mana through Urza, which it uses to rush out stax pieces and eventually combo off by using a Polymorph on your Construct token
My favorite Bant card that didn't make the list is Arcades, the StrategistArcades, the Strategist, because he is a wonderful buildaround for one of the most interesting themes in the format: toughness matters
You should also find the right buyer and be willing to negotiate
Incessant Onslaught has some pretty insane abilities to scale into a very heavy swing late game, making it a handy tech into certain decks
Instead, Necropotence plays a lot like Ad Nauseam: a burst draw effect which is far and away from any semblance of incremental value engines, like those that make up our list
This will also dig you through your entire deck via draw/discard triggers