Well, first because the remaining cards are even more absurd
Since 1993, the date of birth of the game, many old cards cannot be used in current tournaments
If a noncreature card wasn't cast and is entering the battlefield as a creature (due to an effect such as that of March of the Machines), it will be exiled
[29] Moreover, dual-ink cards don't appear to be more powerful nor be more difficult to play
Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Not Legal Toolbox Notes and Rules Information for Locke, Treasure Hunter: Once Locke has been blocked, changing its power or the power of the blocking creature won't cause Locke to become unblocked
It's fun and flavor-forward but slightly weaker than the top three out of the box