With 40 life to play with, you can cheat in any game-ending threat you like, if you get lucky
that you can frequently get access to any card you want so even though 1 Dovins Veto might seem insignificant and marginal it actually makes a huge impact its not out of the ordinary that you see around 35 cards from your deck and the difference between having such an effect throughout the game can be game deciding especially given that you can reuse it with Tamiyo if the situation dictates so
She allows the owner of the card to surveil whenever she enters the battlefield or attacks
Neerdiv, Devious Diver Neerdiv, Devious Diver advertises itself as a mill commander, which is already enough to draw the ire of some opponents
Aya of Alexandria rewards your artifact of legendary creatures for get into the red zone with Assassin tokens whenever they connect.= The Assassin tokens can help with chump blocking while you attack, so I definitely see potential here
Based on the current handful of reveals alone, its looking extremely likely that a Dragon Typal deck of some kind will be tested upon release