Theyre all worth holding onto if you find them, though
Its most obviously great with Delve, but there are just so many cards it sets up any of the Zombify effects, Returned to the Ranks, Ojutais Command, Alesha, Who Smiles at Death, Rally the Ancestors, Whip of Erebos, etc
Chart shows the price of Five Headed Dragon SD09-ENSS1 at the end of each month going back as long as we have tracked the item.
Both the life gain and sacrifice options mesh well with other Witherbloom mechanics , while destroying a low-mana-value target can get you out of some awkward early-game situations against decks like Mono-White Auras
Creature - Human Artificer
Using it, you can save yourself from disaster by choosing one of your opponent's Benched Pokemon and switching them for the Active one