Starlight Spectacular

Parade! — At the beginning of combat on your turn, choose creatures you control one at a time until each creature you control has been chosen. Each of those creatures gets +1/+1 until end of turn for each creature chosen before it. (Places everyone! The first creature in line gets +0/+0.)

Unfinity

If you control more than one Starlight Spectacular, each one calculates its bonuses separately. For example, if you control three creatures and two Starlight Spectaculars, each Spectacular will give one creature +0/+0, another +1/+1 and the third +2/+2. You could choose a different order for each one though.

You don’t have to line up the creatures in a parade line to get the bonuses, but it would be spectacular if you did.