Narset's second ability goes on the stack without a target
The Heartbeat of Legend, Mugen Xorn, Bomb Fire Walker, MutinyCrash, Sword & Shield, Sun & Moon, Enhanced Expansion Pack, C, U, R, RR, RRR, TR, SR, UR, HR, PR, AR, Pokka PSA10 classic classic mimosa Pikachu, Tapu Koko, Dedennegx , Zacianv, Arceus & Dialga & PalkiaGX, CharizardGX, Reshiram & CharizardGX Pikachu in a Poncho Mario Celebi, Jirachi, Zamazenta, Zacian, Rayquaza, Raikou, Oranguru Professor's Research (Professor Magnolia), Marnie, Boss's Orders (Giovanni), Lillie, Acerola, Guzma, Boss's Orders, Onion, Poplar, Adult Woman, Rose, Nez, Saito, Dande
It turns out, though, if you want the most popular partner pairing, it's not with the Partner mechanic, but rather the Partner With mechanic
Although its hard to gather, Id be interested to see any other data relating to this, personally I feel like this bubble affected a small number of cards that went bananas (waifus, special arts, etc) while most modern Japanese stayed relatively affordable
It can be good against Single Strike decks, Rapid Strike Decks, and decks that are weak against Dark
So where other decks might be building up to bigger and more powerful cards, this one wants to go wide with little creatures, each of which has the capacity to become a bigger threat