It is much bigger than normal cards
If one is in Defense position and it has less DEF than the attacking monsters ATK, it is destroyed but its controller does not take damage
Like most Pokmon cards, the value of Snorlax depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Fates Collide)
Namor the Sub-Mariner 1.1%inclusion 33 decks 3.06K decks Speedball, New Warrior 3.4%inclusion 16 decks 464 decks Bilbo, Luckwearer 22%inclusion 8 decks 37 decks Tony Stark 0.2%inclusion 8 decks 5.19K decks Nick Fury, Agent of S.H.I.E.L.D
I am personally not a fan of this card in the main deck, as I prefer what other hands traps like Droll&Lock bird bring in the mirror match
Apart from the 6 basic lands, a Commander deck may not contain double cards and in the choice of cards for the deck you are also limited to the colors of your Commander