To tell if a Pokmon is valuable or rare, always check for rarity symbols, first edition stamps, holographic patterns, and special designations like SIR or alternate art
these days, we cast Emrakul, Portal to Phyrexia, and Coveted Jewel
As these cards are only awarded to the top performers in tournaments, they can provide a sense of accomplishment in addition to looking impressive
When I first wanted to handle this challenge, I figured that 15 of each non-land and then 40 lands would make sense
For a more specific example, lets say you control an Etherium Sculptor and want to cast Mishra's Bauble, but your opponent controls Aura of Silence
And with card advantage scarce outside blue at the time, Forbid succeeded as a pure control finisher and still does in Commander