I updated the Level and Rules sections to clarify two points that may have been easily misinterpretted:

Levels: To play a card you must sacrifice your cards in play whose total levels equal to its level or more.

Rules: Each of your cards can make 1 Action a turn

As people make cards for the game I'll see what base gaps are being misinterpreted and update accordingly while other interpretations are apart of the fun, but right now these two are central to my idea of how the game plays and want it to be crystal clear!