Storm-Kiln Artist Storm-Kiln Artist strikes fear into my heart whenever I see it on the battlefield
To double-dip on his ability, we've though that either Narrow Escape or Kor Skyfisher will do nicely for a rinse and repeat effect to multiply those level counters (too bad Gilder Bairn isn't in standard anymore)
It's also an enchantment for those decks that are about those sorts of things
There's the vanishing mechanic, usually found on enchantments like Out of Time or creatures like Dreamtide Whale, which forces you to sacrifice that permanent when it runs out of time counters

Advanced Search Sets Random Syntax Release date: 2021-02-25 Amrou Scout Amrou Seekers Angel of Salvation Angel's Grace Aven Mindcensor Aven Riftwatcher Benalish Cavalry Benalish Commander Blade of the Sixth Pride Bound in Silence Calciderm Castle Raptors Celestial Crusader Children of Korlis Crovax, Ascendant Hero Duskrider Peregrine Errant Doomsayers Fortify Griffin Guide Ivory Giant Judge Unworthy Knight of Sursi Knight of the Holy Nimbus Lost Auramancers Lymph Sliver Mana Tithe Mangara of Corondor Momentary Blink Mycologist Outrider en-Kor Pallid Mycoderm Porphyry Nodes Poultice Sliver Pulmonic Sliver Rebuff the Wicked Restore Balance Return to Dust Riftmarked Knight Saltblast Saltfield Recluse Serra Avenger Shade of Trokair Sidewinder Sliver Sinew Sliver Stonecloaker Stormfront Riders Sunlance Temporal Isolation Watcher Sliver Whitemane Lion Aeon Chronicler Ancestral Vision Bewilder Bonded Fetch Brine Elemental Careful Consideration Cloudseeder Coral Trickster Crookclaw Transmuter Cryptic Annelid Delay Draining Whelk Dream Stalker Dreamscape Artist Drifter il-Dal Errant Ephemeron Erratic Mutation Fathom Seer Foresee Gossamer Phantasm Infiltrator il-Kor Jodah's Avenger

This pan-flute paragon makes a 2/2 the first time you cast an enchantment every turn, and better yet, the 2/2 he makes is also an enchantment, so it effectively doubles your first Constellation trigger