If one of the lands in this cycle becomes a creature because of an effect other than its own ability, its last ability will still trigger whenever it attacks
Cabal Coffers is one of the lands that continues to get away with murder turn after turn because all that it needs to do its thing is for you to control a handful of swamps, with a card like Urborg, Tomb of Yawgmoth readily available to make it even easier
That's a lot of people opening booster packs, battling one another and looking for that one Shiny missing from their collection
A First Edition Charizard can fetch anywhere from $800 to $350,000 depending on the quality of the card, while a Base Set 2 Charizard that was printed a few months after the First Edition will only fetch $10 to $800
If you can give it indestructible, its just Plague Wind, but a 10/10 that picks off a couple of small or mid-sized threats is still pretty darn good