When fan demand is high and supply is low, the value naturally increases
Plenty of white decks struggle with digging for creatures to keep up the pressure, and Conjurers Mantle gets it done
Getting a token every turn is nice, but his stats are lackluster at best and even as a piece in a multicolored deck he can only crank out one 1/1 per combat step
A Mardu commander gives you access to plenty of good instant-speed tricks and removal to keep your foes from attacking you
For graded cards, PSA and BGS labels are difficult to fake convincingly, but always verify the population report on PSA's website using the certificate number on the label before purchasing high-value slabs
Colossus Hammer, Belt of Giant Strength, and Argentum Armor to (hopefully) make our commander the biggest creature on the board just by themselves