5 Hanweir Battlements + Hanweir Garrison = Hanweir, The Writhing Township The unfortunate fusion of an entire town, Hanweir, the Writhing Township is a powerful card
Granted, it's tapped Treasure, and it's gated to once per turn, but that's only fair given you can convert your stash of Treasure tokens into 4/4 fliers with haste
Each are more than $20 and each were only reprinted twice, in Double Masters and as a Zendikar Expedition : Why is there such a disparity among this particular land cycle
There are many other reasons besides mana consistency why Fetch Lands are so good
They all have just one toughness, which makes them vulnerable to all manner of removal options
Trigger either once and the loop drains every opponent to zero