The reason it afflicts foils much more than regular cards is that the front side of a foil card won't change size with the back, making the card bend
In general, the problem with expensive cards is that if you cast them and your opponent is able to answer it, you are in trouble
Noxious Gearhulk and Patron of the Vein fulfill similar roles, and are much stronger cards, providing decent damage, evasion, and secondary effects
For example, he came up with the concept of mana being an energy source tied to the land
Creatures (10) Planeswalkers (2) Lands (18) Spells (30) Creatures (7) Lands (20) Spells (33) Creatures (9) Planeswalkers (2) Lands (18) Spells (31) Okos widely included in Urza strategies, but always as a sideboard card