Delve is used to great effect on a few cards, but more ways to cast huge spells for less while still triggering the higher cost for Rootha is an easy upgrade
Filling your field with creatures is one thing, but token creatures tend to be relatively weak compared to the ones that you cast
Are any of your usual opponents outdrawing the entire table on a regular basis
You can get random cards in Booster Packs or buy premade Starter Decks
Creatures like Papalymo Totolymo, Emet-Selch of the Third Seat, Lyse Hext, and partners Alisaie Leveilleur and Alphinaud Leveilleur all naturally play into Y'shtola's strategy
If you look closely, you can see an adorable silhouette of Stitch in the background on a pillar, looking as menacing as he usually does