Soul Servant In the latter half of the game, Soul Servant is an extremely busted version of Pot of Greed since you can use it to draw so many cards
Land Tax White is very weak in the ramp department, and its usually behind on land count, especially against green players
It's heavily played at the kitchen table and Commander, and over at EDHREC.com it's in 33,969 decks for 16% of decks with its colors
MTG isnt really built to allow for this physically (the ill-advised experiment with stickers in Unfinity notwithstanding), so this is a virtual change only that needs to be remembered by all players or signaled with a reminder or a written note
Almost all of the deck's removal and card draw require you to sacrifice creatures or discard cards, so you'll have no issue triggering your Airships
Nadu, Winged Wisdom dominated Modern and Legacy formats with powerful abilities