This ability lets you sacrifice artifacts en masse for decks looking to win with cards like Marionette Master or Agent of the Iron Throne

Blue Snow Creature (23) 1x Aphetto Alchemist 1x Arcanis the Omnipotent 1x Archaeomancer 1x Barrin, Master Wizard 1x Chromeshell Crab 1x Daring Thief 1x Djinn of Infinite Deceits 1x Docent of Perfection Flip 1x Fatestitcher 1x Gilded Drake 1x Mulldrifter 1x Perplexing Chimera 1x Phyrexian Metamorph 1x Rimefeather Owl 1x Rimewind Cryomancer 1x Rimewind Taskmage 1x Scourge of Fleets 1x Solemn Simulacrum 1x Spawnbroker 1x Temporal Adept 1x Tidespout Tyrant 1x Venser, Shaper Savant 1x Voidmage Husher Land (36) Enchantment (10) 1x Conjured Currency 1x Dismiss into Dream 1x Freed from the Real 1x Icy Prison 1x Leyline of Anticipation 1x Mystic Remora 1x Propaganda 1x Puca's Mischief 1x Reality Acid 1x Rhystic Study Artifact (12) Instant (11) 1x Blue Sun's Zenith 1x Boomerang 1x Brainstorm 1x Capsize 1x Cyclonic Rift 1x Dissipate 1x Faerie Trickery 1x Rewind 1x Summary Dismissal 1x Turnabout 1x Unsubstantiate Sorcery (10) 1x Cultural Exchange 1x Devastation Tide 1x Fabricate 1x Juxtapose 1x Legerdemain 1x Ponder 1x Reality Strobe 1x Rite of Replication 1x Shifting Loyalties 1x Switcheroo

Iroas, God of Victory is great for combat-heavy decks
That sacrifice ability is what pushed this guy over the edge for me, making it the best mythic card
He's a pink blob known for being an annoyance on whatever show he appears on, only able to utter his name, much like a Pokemon
the rule on the human side was that the card transformed at the start of your turn if no spells were played during the last turn