Maybe it's a design decision.
Who Commander is for Players who like big plays, variety, and social games People who enjoy deckbuilding as self-expression Anyone who wants to use a wide card pool without chasing a rotating metagame Brawl Brawl is basically Commander, but Arena-sized. Historically, Brawl has been a 60-card singleton commander format using a Standard-like card pool
Lower Text - Promo Info booster NEW EVOLUTION [BT-01] CLOSECLOSE BT1-091 R Option Scrap Claw Color Red Form - Attribute - Type - DP - Cost 3 Digivolve Cost 1 - Digivolve Cost 2 - Upper Text [Main] 1 of your Digimon gains Piercing (When this Digimon attacks and deletes an opponent's Digimon and survives, check a security card) for the turn
Generally speaking, this is not a good plan
The difference is a bit jarring
"Blue-Eyes" monster Spell/Trap that mentions "Blue-Eyes White Dragon" or "Blue-Eyes Ultimate Dragon", except "Bingo Machine, Go!!!" Blue-Eyes Abyss Dragon X LIGHT Level 8 [ DragonEffect ] ATK 2500 DEF 2500 If this card is Special Summoned: You can add 1 Ritual Spell or 1 "Polymerization" from your Deck to your hand