" Choosing a deck from this perspective is, in a sense, harder than looking for a deck to win with
Say you're building Zoodiac Tri-Brigade
Here, it gets much harder to keep up with the unending swarm of undying Boos, which is why this card sees some play in the most powerful formats, Legacy and Vintage
While many of the cards were at least somewhat playable, the standouts include Tooth and Nail (which was a Standard staple and sees fringe Modern play to this day), Promise of Power (which still shows up in black Commander decks, mostly because drawing five cards for five mana is a pretty great deal in a 40-life format), and Rude Awakening (which offered both combo potential thanks to the land-untapping ability and a way to close out the game by turning all of your lands into random 2/2 beaters)
The combat damage trigger is absurd, not only drawing you a card, but letting you cheat on mana by casting virtually any spell for free