Itll be the one to take hits from your opponents Pokmon, depending on its health points and the kind of attacks launched by your opponent
Significant cards not on the list: Burgeoning $5 Ensnaring Bridge $5 Hermit Druid $2 Horn of Greed $3 Mogg Infestation $2 Soltari Champion $3 Crystalline Sliver $3 Wall of Blossoms $2.50 Wall of Souls $2 Again, the bulk of the best cards made the reserved list
Dreamstone Hedron One of several mana rocks that draw you 2+ cards, Dreamstone Hedron provides a ramp effect when needed and can be ditched for more cards when it's no longer useful
This also combos with Sanguine Bond, Exquisite Blood, or Vito, Thorn of the Dusk Rose to either deal more damage or gain more life
As a nice way to break any stalls, the unblockable spirit tokens do need to watch out for sneaky spirits on opposing battlefields, but are otherwise a fine win condition