If were going Bracket 3, Im dropping Reanimator entirely, except for as a resource package to help us keep getting lands into play using the Boros BAE
Easy question until that 3/2 is a Kitchen Finks, then you might choose to block the 2/1 and face only 3 power of attackers the following turn rather than the four you would face if you trade with the first part of the Finks
Lets say, for example, that youre playing a Red and Black deck, and you find yourself in desperate need of a board wipe
Examples are Battle of Wits (which requires a huge library to win the game) and Scapeshift (which requires playing enough Mountains to one-shot your opponent with Valakut triggers)
Creative Energys bringing the heat
If youre on tokens, you probably take the artifacts mentioned above first, and then you jam Tocasias Welcome and Welcoming Vampire, and a Bennie Bracks if you have one (I hope he keeps being reprinted!)