For example, nearly every deck in Pokmons Standard format has at least one copy of Professors Research, a 1-sided Wheel of Fortune that all decks can play four copies of
You just need some type of outlet that allows you to win off of constantly flickering all of your permanents
For example, Vorinclex, Monstrous Raider's last two abilities can apply to counters placed this way
Killer's Mask - Friday the 13th Let's Play a Game, Grab the Prize, Trial of Agony - SAW Osseous Stickwalker - a living Wickerman Unstoppable Slasher - Halloween's Michael Myers Clockwork Percussionist - Stephen King's The Monkey Haunted Screen and Cursed Recording - The Ring Ragged Plaything and Arabella, Abandoned Doll - Anabelle Vicious Clown - Child's Play Anthropede - A literal Human Centipede Altanak, the Thrice-Called and Say Its Name - Beetlejuice, Bloody Mary, or Candyman Break Down the Door - The Shining Omnivorous Flytrap - Little Shop of Horrors Disturbing Mirth - All the Razorkin are part SAW, part Hellraiser, but this one gives off particularly Cenobitey vibes
(Food is an artifact with ", , Sacrifice this token: You gain 3 life." Treasure is an artifact with ", Sacrifice this token: Add one mana of any color.") Creature - Elf Scout Landfall (CTRL to add secondary) Mill Crop Sigil At the beginning of your upkeep, you may mill a card