Two six-sided dice usually give you 4-6 mana worth of cards, and that includes all the lands and 0-mana spells as well
The first one that comes to mind is, of course, Cori-Steel Cutter
If you counter a problematic permanent before it enters the battlefield, it ends up in the graveyard same as if it had entered the battlefield and you removed it
Graaz, Unstoppable Juggernaut Graaz, Unstoppable Juggernaut is a bit of a head scratcher
There simply isnt a singular, over-the-top card like Rise from the Tides or Spider Spawning to reward a focused strategy
Magic: The Gathering is practically its own currency at this point, with no shortage of rare and expensive MTG cards out there to buy, sell and trade