Being able to surveil 2 during combat lets you see and access a solid amount of cards, especially if you can utilize your graveyard effectively
Brainstealer DragonBrainstealer Dragon seems like a worse Etali, Primal StormEtali, Primal Storm at first, because you have to pay for the stuff you exile
Ascendant Spirit I think this is a neat card, and it's worth nothing that the 4 Snow ability (or any of them) can be used over and over, meaning you'd draw multiple cards each time you do combat damage
A card's Oracle text can be found using the Gatherer card database at A rule specifically tackling your question: 205.3f Many cards were printed with subtypes that are now obsolete
These 300-piece puzzles are fantastic for beginners, offering a satisfying challenge that builds confidence for those bigger 1000-piece sets later
But its combat trigger is where the fun really starts