The fact that it only casts creatures and doesnt work on abilities makes it way more limited than it reads
Card advantage is a strategic concept (rather than a specific game term) and a lot broader, and basically means having more cardboard than my opponents. For starters, any card that puts more cards in your hand is card advantage, even if it doesn't say draw. But card advantage also looks at what happens in other zones
Let's get ready to Tangle
She's a mere 4/4, but she's also got a rather powerful mind-control effect, temporarily resurrecting a creature she personally slew, and having that creature fight for you as long as she's around
But I love the way it works on Archon of Cruelty down to the red slash for the mythic on the set symbol
Delney, Streetwise Lookout Ability doublers, even ones as restricted as Murders at Karlov Manor s Delney, Streetwise Lookout, provide an avalanche of value