screwing with drawing the whole card in SVG using paths and filters
pulled the <path>s into the <defs> block, and <use>ed them to assemble the card without all the duplication.  it's got a lot of garbage math in there because the paths were drawn as a unit.
filters playground.  everything's been "moved" to frame.svg, but recording for posterity.
changed the component paths to be based at the origin, and then placed where they need to be on the card layout itself.
sized and aligned the power/toughness box based on the main surface's internal dimensions, expecting the beveled border to be fully outside it.
changed the paths to be center-oriented, which allows scaling operations to affect them uniformly.