For spiced simple syrup: Combine piloncillo, water, cloves, cinnamon stick, and anise in a saucepan. Bring to a boil, reduce heat and simmer until all sugar dissolves. Remove from heat, allow to cool completely. Once cool, strain and place in sealable jar. Place in fridge until ready to use. Will keep in fridge for up to one week, shake before using.
To make the punch: Combine pear juice, mezcal, chilled champagne, orange liqueur, lemon juice and half of spiced simple syrup, taste and add more spiced simple syrup if desired. Stir to mix, serve over ice.