A part of it boils down to the nature of the deck: There simply arent very many creatures that actually matter for the deck
The deck starts by casting a number of powerful blue/white creatures with strong secondary abilities including creating 1/1 flying tokens (Tura), card draw/anthem (Raff), reducing spell cost (Haughty Djinn), card draw/looting (Talas Lookout)
interestingly, Sixth Edition rules, which got rid of interrupts, changed the card back to its Alpha wording).Island Sanctuaryprotected you against creature damage from any nonflying, non-islandwalk creature, even your own (prompting a fun AlphaOrcish Artillery/Island Sanctuarydeck)
To be precise, PSAGraded ended the search with a tweet revealing that this totally unique card had been found, authenticated, and graded at mint condition
The large amount of enchantments in this set make him playable