Besides planeswalkers, there are a lot of other cards that Hammer matches up favorably against, which is a lot of what the new era of Magic is about (that whole "subgame" thing again)
3 Prince Naveen - Ukulele Player 3/204, Amber Making good use out of Prince Naveen - Ukulele Player definitely requires building the right deck, as there isn't much point in having him around if powerful Disney Lorcana songs aren't on hand
It costs two less mana to use and one less colour
#3: Scarlet & Violet Paldea Evolved: Everything that Scarlet & Violet base set did right
Wards not necessary here, but Ill take it, and if my opponents refuse to cast their ETB creature while it sits in play, Id call that a win too
As for the big spells, the first thing Id turn to is extra turn spells