It's only two mana for that effect without the ability to effectively ping it to death easily
Core deck archetypes: UR tempo, Delver (named after Delver of Secrets), and Murktide
Your cast trigger will impulse draw two, toss a +1/+1 counter here with trample, or make a flying bird token
Seventeen of the eighteen will be in single-card Box Topper boosters and Collector Boosters
Because the one-shot effect that returns the card isn't an ability that goes on the stack, it won't cease to exist along with the leaving player's spells and abilities on the stack
Case in point, today I'm talking about a plucky duo of cute animals, Francisco, Fowl Marauder & Kediss, Emberclaw Familiar