The next big thing really helping white perform is resilience
Its vastly more accessible than its Special illustration rare version Umbreon EX (161/131) which currently holds the title of the most valuable Scarlet and Violet card in the entire series in terms of current market price
1a: a hiding place especially for concealing and preserving provisions or implements1b: a secure place of storage2: something hidden or stored in a cache3: a secret place of hidden valuables Established in 1988, Collector's Cache has been a symbol of quality cards, toys, and other various collectibles
Cards like Lagrella, the Magpie or Fiend Hunter work perfectly with ETB strategies because they temporarily exile creatures, which lets you retrigger their effects once those creatures return
Its very polite, letting you walk through the door it opened (hence after you)
This is normal for a starter deck to show off new cards while rounding it out to be playable and consistent