If you are running a Dimir infect deck, you can have Displacer Kitten on the field to exile and return Ichor Rats each time you cast a noncreature spell to further abuse its ETB effect
I hope there is a point in the future when we can see a little more player expression in deck construction
Game: Magic The Gathering

Abigale, Eloquent First-Year Amphibian Downpour Azure Beastbinder Barrow-Blade Chromium, the Mutable Curious Colossus Dance of the Skywise Day of Black Sun Dragonshift Duskmourn's Domination Eaten by Piranhas Flood the Engine Fowl Play Fresh Start Frogify Frozen in Ice Gift of Tusks Heliod's Punishment Hellcat, Undying Vigilante Honest Work Humble Humility Hunted by The Family Ichthyomorphosis Immovable Rod Kasmina's Transmutation Kenrith's Transformation King of the Coldblood Curse Lignify Lizard, Connors's Curse Mercurial Transformation Merfolk Trickster Monument to Perfection Muraganda Eldrazi (playtest) Mystic Subdual Noggle the Mind Nullhide Ferox Obscura Confluence Observed Stasis Oko, Thief of Crowns Opportunistic Dragon Orb of Origin (playtest) Ovinize Patriar's Humiliation Polymorphist's Jest Primordial Plasm Quantum Reduction Ray of Frost Reprobation Retched Wretch Retro-Mutation Snakeform Soul Sculptor Spark Rupture Stop Cold Tamiyo's Compleation The Curse of Fenric The Wondrous Wasp Tishana's Tidebinder Titania's Song Town-Razer Tyrant Trickster's Elk Turn // Burn Turn // Burn Turn to Frog Unable to Scream Utter Insignificance Very Cryptic Command Warkite Marauder Witness Protection

Gaining the counter in the upkeep, and then trading it to an Oak or Fertilid gets you two Scourge triggers, and gives the same benefit as just placing the aura on the other creatures directly
Every Pack you open fills a slot on two Wildcard Tracks, one for an Uncommon Wildcard and the other for a Rare Wildcard