Development playtests are much closer to what the players play and as such development wants to put it through realistic playtests
Go-Shintai of Life's Wisdom is valuable to the deck for its ability to bring enchantments back from the graveyard to the battlefield, and it might be that Wizards chose the card for this ability alone
No claims or returns will be allowed once you sign and pick up your items from the auction house so please review your items at time of pick up before you drive away
Clavileo also gives them a second ability that if that creature dies, you get a 4/3 token with flying and you draw a card
However, as far as I can tell, there is no way to tell that the Charizard card was the first card printed ever, so if, you'd like to clarify, i'm listening
The deck then adds a number of different acceleration, removal, card draw, and counterspell effects