For more information about double-sleeving, check out my recent article here
Some engine cards make more dorks, some draw cards, the best ones however do direct damage and cut out the need for any middle men on your path to victory
It's also good in tribal Snake decks built around Kaseto, Orochi Archmage or Seshiro the Anointed
Now, the Kalemne, Disciple of Iroas is consistently selling for $10.07, representing a 416% price spike
Of the remaining six non-zombie creatures: One is a clone, Vizier of Many Faces, which you are likely to make a copy of one of your own zombie Three have eternalize, so can come back as zombies Two are Grave Titan and The Scarab God, which both make zombies I feel like they did Grave Titan dirty by not making it a zombie, but then it wouldnt be as clean a cycle of Giants
This is a specific strategy which requires a lot of niche cards to work, so you get some uniquely powerful rewards in the mix, and that can be fun for a lot of players