reddit pokemon booster box TCG: Scarlet & Violet - Destined Rivals Display With 30 boosters in the display Pokemon Card Mystery Box: Graded

Source: Press release

Unfortunately, theres nothing you can really do about that because some types dont exist in the TCG for a variety of reasons notably, to keep the TCG simpler and playable, because 11 Pokemon types are much easier to manage than 18 different ones that all demand different energies to play their movesets

Carolyn Fern (psychologist) 2.5.1

Auras are the best way to boost Sigardas power since a Selesnya commander has access to all the best enchantress cards, including Sythis, Harvest's Hand and other enchantresses to draw cards and spells with umbra armor like Snake Umbra to protect Sigarda from those board wipes