Raging Storm Enchanted, 225/204 Stitch-related cards tend to rank pretty highly on any list of the most valuable Lorcana cards
Emry occupies an interesting spot for a threat, mostly because shes actually hard to kill with Fatal Push (since revolt isnt a given like it is in Modern)
That 21 damage looks to come from one commander
At a certain point, when there is enough mana available on your board, you can get a (fairly) safe win with the 3/1 XRGW Elf Rocco, Cabaretti Caterer or go infinite with the right combination, for example Kiki-Jiki & Conspicuous Snoop, Temur Sabertooth and Zacama, Primal Calamity, or Vizier of Remedies and Devoted Druid
The body does a lot of work, being a 1/2 make it far more useful in combat than the 1/1 tappers and while the activation is steep it is not a significant detriment to the card
She ensures that +1/+1 counters do not disappear when creatures leave play, which reduces the impact of removal and board wipes while increasing the importance of stable mana access through the top dual lands in MTG