Shinewend

Enchantment removal has always wanted a body, and most attempts pay for it by stapling the destroy clause to a creature you cast once and forget, or by sacrificing the creature outright the way Kami of Ancient Law does. The +1/+1 counter is the cleverer move here. The enters-with-a-counter clause makes this an actual 1/1 flier; the destroy-an-enchantment ability spends that counter, so firing it shrinks the elemental back toward its printed 0/0 and sends it to the graveyard via state-based check unless something has propped up its toughness. That conditional is where the design splits into two cases. A static toughness buff (or any other toughness boost) keeps the creature alive after the counter comes off, so you get a flier that survives its own removal spell, but it does not refill the ammunition: the ability costs a +1/+1 counter, and a toughness anthem does not put one back. To answer a second enchantment you need an actual second counter, from a proliferate effect or a counter-doubler or anything that adds +1/+1 counters directly. Get that, and the same elemental can chew through enchantment after enchantment while staying in the air; without it, the default is a one-and-done. The timing carries the rest: the kill is an activated ability at instant speed, so it holds up as a flash answer to an aura or a problem enchantment while still chipping in beforehand. White pays in tempo, committing a two-mana flier that can shrink itself to death, but the counter is both stat line and ammunition, and how many shots there are depends entirely on what else feeds it counters.