Priceless Rewards
It's a nice flip, and it makes all those unplayable gain life cards from Limited playable, and that's a great positive
Phase is where you'll play your resources, DON
This will, on arrival to the battlefield, destroy any one artifact or enchantment (it says "up to" so you don't have to target your own stuff)
Alesha, Who Smiles at Death Arcbond Archfiend of Depravity Atarka, World Render Citadel Siege Crucible of the Spirit Dragon Crux of Fate Daghatar the Adamant Dragonscale General Dromoka, the Eternal Flamerush Rider Flamewake Phoenix Frontier Siege Jeskai Infiltrator Kolaghan, the Storm's Fury Mardu Strike Leader Mastery of the Unseen Mob Rule Monastery Siege Ojutai, Soul of Winter Outpost Siege Palace Siege Rally the Ancestors Sage-Eye Avengers Sandsteppe Mastodon Scroll of the Masters Shamanic Revelation Shu Yun, the Silent Tempest Silumgar, the Drifting Death Soulflayer Supplant Form Tasigur, the Golden Fang Temur War Shaman Wildcall Yasova Dragonclaw
This works for any counter from loyalty counters to +1/+1s to energy counters