Staying alive for the first few turns is the name of the game with Mill, because once you are able to start casting Fractured Sanity and Tashas Hideous Laughter, you wont have to take many chunks out of the opponents library to end the game
You can either remove more powerful attackers, or your opponents might just choose not to attack until they can deal with this card, buying you some time
The combination of flying and lifelink gives Teval natural staying power, but the real draw is its blanket delve effect, letting you turn every spell into a miniature Treasure token by cashing in cards from your graveyard
Looter il-Kor A bit weaker than some of the other cards here as a discard outlet for being slow and giving your opponents time to react
This will deal with anything on the field, just like its color-shifted cousin, Generous Gift