I guess you are taking the Pacers
I preface my remaining picking strategy by listing the playoff teams I've already picked: Bucks, Knicks, Celtics, Suns. Basically half of the playoff teams...
I don't think Pacers vs Celtics is a good matchup for Pacers. Haliburton probably gets shut down by Holiday, and they don't really have an answer for Prozingis. And then there is still Tatum and Brown to deal with. Celtics just have too much talent and scoring for Pacers to handle, plus the Celtics can and do actually play defense. But then again, I don't have a choice, do I?
Maybe I will attempt to prolong my inevitable demise by just a little bit and pick the Pels or Kings, as I really don't think Pacers can beat the Celtics. But then again, I could be wrong, and I had been wrong numerous times... This pick is hard.