Minecraft wiki entry for Entity_format, associated text: : The entity's root tag.
 enchantPower: The level of Power enchantment on the bow that shot this arrow, where 1 is level 1. 0 if no Power enchantment.
 enchantPunch: The level of Punch enchantment on the bow that shot this arrow, where 1 is level 1. 0 if no Punch enchantment.
 enchantFlame: The level of Flame enchantment on the bow that shot this arrow, where 1 is level 1. 0 if no Flame enchantment.
 enchantInfinity: The level of Infinity enchantment on the bow that shot this arrow, where 1 is level 1. 0 if no Infinity enchantment.
 mobEffects: Effects on a tipped arrow.
: An effect.
Tags common to mob effect[show]
 auxValue: The metadata of this arrow. See Arrow#Metadata.