Without the play/draw rule, a first turn Tower is all but guaranteed to give you a decent amount of life when you're running a deck without a steady curve and it was your best defense against the antithesis of the Tower, Black Vise
Like any strategy revolving around graveyard interactions, this build is pretty easy to sideboard against
It will often cost a mere 2 white mana, making it one of the most efficient sweepers in the format
Theyre colorless or have the potential to be colorless when morphed and thus work well with Ugin, the Spirit Dragon and all of the colorless lands the deck rightfully plays
This alone is a fairly decent answer to cards with toughness of two or less, while also getting around the targeted aspect so that it can damage warded creatures
Players love the strong commander cards, while collectors enjoy the unique lands and treasure-themed art