Phyrexian Tower

Mythic1 version from Urza's Saga · all sets

Cheapest version$55.98TCGplayer market price

Urza's Saga1998

Draft Booster 1 in 110 packsany version · 28% per box of 36

VersionPriceDraft Booster

Regular #322 $55.981 in 110 packs28% per box

"Any version" adds up the chances of each version, so it is a close estimate.