Usually, you either decide before the Draft because you think a specific color combination or archetype is particularly powerful, you think a specific guild might be under-drafted, or based on opening a particular rare you want to play
Graveyard hate, life drain, and artifact token generation all come together on what ends up being a decent midrange card that your opponents probably shouldn't ignore
Just remember to say that you're responding to whatever you're responding to
If you fetch one land with it, it's a bad Cultivate, two lands and it's a better Explosive Vegetation, three+ lands and you're heading straight into valuetown
Your Tolarian Terrors are generally used to trade, but they can pivot into a racing role, forcing your opponent into awkward blocks
We still wouldn't put the card in our favorite Amethyst decks, but we would sleeve it and display it