This is because you can draw this card right away by excluding the 5 dragons sent to the future fusion as a dragon mirror
Additionally, as Tevesh Szat has partner, this ability states that if a commander is sacrificed this way, three cards are drawn instead, meaning its controller can potentially convert their second commander into card draw when in a pinch
One side note about adding in a second Lugia-EX: if I did so, I would probably drop down to two Rainbow Energy so that I could add another Double Colorless Energy
C Common Field-Commander Rahz X EARTH Level 4 [ WarriorEffect ] ATK 1600 DEF 1200 When this card is Normal or Special Summoned: Choose 1 Level 4 or lower Warrior-Type monster from your Deck, except "Field-Commander Rahz", and place it on top of your Deck
Space for your investigator and any tucked cards they may have
Imported straight from Japan, this box is your official entry into the high-tech world of Paldea, loaded with30 booster packsof pure futuristic energy
