You can use an official blank card or a proxy to represent the graded card
While you're likely not going to be able to pay to cast The Swarmlord for much beyond that, with a few tools like Hardened Scales or upgrading for a Doubling Season or Vorinclex, Monstrous Raider , you should be able to make The Swarmlord a big threat when it enters play
From its abilities to the art, I love everything about it
Id still want a couple of the better non-vampire reanimation targets, like Archon of Cruelty and Hoarding Broodlord
Imodane, the Pyrohammer It feels so good to use red's removal with Imodane, the Pyrohammer and still put damage in all your opponents' faces
In that case, Yarus, Roar of the Old Gods's last ability triggers once for each player that face-down creatures you control dealt combat damage to, regardless of how many creatures were dealing that damage