Toluz points to a heavy discard strategy with mechanics like loot, connive, cycling, channel, and the like
And then, X number of years later, the process repeats itself.
The key feature of the service is that it evaluates your card and sets its price
While a 0/4 with defender may not seem like much at first, whenever you cast an instant or sorcery, you can remove one of these ice counters
It also was an excellent topdeck in the late game because of its Monstrosity X ability, which often amounted to a double removal spell, and would sometimes even straight-up Plague Wind the opponent while putting a 12/12 or bigger creature onto the battlefield