Altar of Dementia [Conspiracy] Human Ally create a 4/4 red Bird

create a 4/4 red Bird creature token with flying at the beginning of the next end step

Sometimes you have to search for inspiration

Set: Dominaria Prerelease Promos Type: Legendary Planeswalker — Karn Rarity: Mythic Cost: {4} +1: Reveal the top two cards of your library

Set: Coldsnap Type: Enchantment Rarity: Rare Cost: {1}{R} Cumulative upkeep—Add {R}

your opponents can't cast spells or activate abilities of artifacts

Altar of Dementia [Conspiracy] Human Ally create a 4/4 red BirdSet: Conspiracy Type: Artifact Rarity: Rare Cost: {2} Sacrifice a creature: Target player mills cards equal to the sacrificed creature's power. "It is not that you will go mad. It is that you will beg for madness." Volrath