The thing that stuck out to me most when thinking about this lineup was their iconic weapons
Additionally, a limited number of these Secret Lair drops will be available through D&D Beyond Marketplace
The downside of these cards though is lots of playgroups really don't like these cards so it's rude to play them at those tables, and also their win% goes down if your opponents both hate these cards and know you run them since they will gang up and kill you (ignoring everything else) so you don't get a chance to cast them
"Citadel" can be summoned from the GY when any EARTH Machine is destroyed, and has a Quick Effect to destroy a Machine you control and all opposing monsters with equal/less ATK
Its not even on the Reserved List, so you could expect it to get a reprint just like other cards seen in Portal Three Kingdoms
To get a clear picture of the format's state following the release of Foundations , I analyzed 192 decklists from the latest Magic Online Challenges and 392 decklists from Standard tournaments held at SCG CON Columbus