This reddit thread about where to start with proxy Cubes has plenty of helpful options for you on how to make hundreds of proxies easily and for relatively cheap
For instance, there's a popular combo with the MTG commander Magda, Brazen Outlaw where you make Magda an artifact using Liquimetal Torque, then tap her and another artifact to untap herself, making a treasure in the process
Ultimately, the true value of the Collector's Edition Commander decks is still subject to what you get out of them
This is an engine that's very easy to piece together
Relentless X-ATM092 makes it so the defending player either has to dedicate three different creatures to blocking it or ignore it and let the damage come through
We need to be aware of complexity creep While we've been working to make sure that individual mechanics are less complex overall, there's a trend in the last year of us making the sets complex in mechanical interaction