Creatures like Knight of Malice cant be the target of white spells or abilities your opponents control, but spells and abilities of any other color are fair game
Enough effects that do a damage to everyone or every opponent, like End the Festivities and Creeping Bloodsucker, and your 1-drop 1/1s enter as 4/4s
The first thing I think of when seeing this card are mass-sacrifice effects, like Plumb the Forbidden and God-Eternal Bontu
Blade Historian Blade Historian is a simple and nearly unique creature that gives double strike to all your attacking creatures, many others require typal incentives
The bona fide money cards
Cruella De Vil, Miserable as Usual allows you to return a character back to a player's hand , showing off that once a character is on the field, they can be bounced back to their owner, forcing them to pay more ink to bring them back or get rid of them