Here are some other useful measurements to know about standard playing cards: Standard playing card size mm: 64mm x 89mm Required bleed: 2mm along each edge Recommended margin: 5mm Rounded corner size: 3.5mm What Are The Different Playing Card Sizes
Sword of the Animist and Land Tax both help you to get more land into play, but more importantly, they help thin your deck so that you can find more important cards to advance your strategy
Check out the Bat God next
This pair could be my top spot easily
You can search by specific card, for example, if we want to look for things to do with Mindslaver or if you're really devilish, you can search by combo type, such as Gain control of all of target player's turns. Highly recommended
The Ur-Dragon is currently in the fifth spot of all-time commanders, but I expect that to change with the reprint (theres only a couple hundred decks between it and number four, barely a thousand between it and number three)