Getting these powerful cast triggers of the Eldrazi really cheaply is just nasty to think about
It refills your hand as it gets permanently bigger, and it costs 1 less to cast than Prossh, Skyraider of Kher
So then the question becomes, for two mana, would you play a card that gives you a Treasure when an opponents creature dies once each turn
Protecting draw engines like Wavebreak Hippocamp and Slitherwisp will be vital when Flash decks lose scaling threats like Nightpack Ambusher
Add in the low supply of many Reserved List cards (which occasionally allows sellers to manipulate the headline price number by listing a copy at an unrealistically high price point, which is how we ended up with Moat at $100,000 this week, even with a BSG 9.5 copy for sale at $3,400 and a played copy at $1,500), and the headline price of a card tends to overstate the price that you can actually get the card for, if you are willing to lower your standards a bit
(#113/108), reprinting the original Team Rocket expansion trainer card, has built a small dedicated collector following