Felisa, Fang of Silverquill Look, more tokens
Inquisitor Greyfax buffs all your other creatures as well as giving vigilance
If a deck can afford the mana to use it, it should run it
While technically Death and Taxes is a White Weenie deck, unlike many White Weenie builds, rather than looking to play a ton of one-drops and kill the opponent as quickly as possible, Death and Taxes takes a slower route based on playing a ton of disruptive creatures that aren't powerful enough to lock the opponent out of the game but are annoying enough to slow the opponent down (hopefully enough to allow us to steal the win by beating down with our random creatures)
There are a lot of times, though, where acquiring a beat up version of something is preferable
(9/20/2024) If a manifested creature would have disguise or morph if it were face up, you may also turn it face up by paying its disguise or morph cost, as appropriate