Creatures (5) Planeswalkers (5) Lands (24) Spells (26) What is really holding Narset back in Modern is how few archetypes are presently built around card advantage and selection
in fact, decks may not even opt to play the Energy required for their attacks since they'd have to be extremely desperate to consider fighting with them anyway
You can even go Chandra, +1, Mox Amber, tap an extra land and slam Zahid as a big blocker to defend your planeswalker
The official pack counts and contents are all confirmed now, so you can buy by use case instead of guessing
This Sultai deck wants to steal cards from your opponents' decks to play them yourself
Maybe Hullbreaker Horror could do it, or a Sink Into Stupor, but there aren't a lot of things that could get it done