Disney, all the way back to 1939s Practical Pig singing work and play dont mix, liked to show off unimaginative and industrious creatures as superior citizens in the grand march of capitalist progress, which left the zany otters of the film and perhaps the Imagineers behind the Disneyland I loved to visit in the lurch
One way to think of things is that creatures provide value every turn that they attack or block
It is particularly strong in Limited, and I see the creature hit the battlefield (often through Sneak Attack effects or cards like Reanimate) in LSV's Vintage draft videos all the time
Liesa, Forgotten Archangel, Taborax, Hopes Demise, Athreos, God of Passage and Nalia deArnise all help load (or reload) your hand with more copies, assuming your opponents dont just let you win right away
Damia generates additional card advantage as long as youre able to untap with it and reach your upkeep before your opponents manage to kill it